6072a2a6a1 wallet: feebumper, fix crash when combined bump fee is unavailable (furszy)
Pull request description:
When a large cluster of unconfirmed transactions exceeds the limit,
`calculateCombinedBumpFee()` returns `std::nullopt`.
Previously, we continued executing and the optional value was
accessed unconditionally, leading to a `std::bad_optional_access`
exception (https://en.cppreference.com/w/cpp/utility/optional/value.html).
Fix this by returning early when the bumped fee is null.
Note:
This is a crash for the GUI, and an uncaught exception for the RPC
`bumpfee` and `psbtbumpfee`.
ACKs for top commit:
achow101:
ACK 6072a2a6a1
luke-jr:
utACK 6072a2a6a1
rkrux:
crACK 6072a2a6a1 based on returning before accessing the null optional.
Tree-SHA512: f863ace1426b2e743e2281e5c624b523de7317c1f305f88f369e77d60005460e4af58b424bc784304fd1ac30a3bfa575137537ec334fa6e449c827daeb262a99
92287ae753 test/wallet: ensure FastWalletRescanFilter is updated during scanning (Novo)
Pull request description:
Part of https://github.com/bitcoin/bitcoin/pull/34400
On master, the `wallet_fast_rescan.py` test will pass even if the fast rescan filters are not updated during wallet rescan. This PR improves the `wallet_fast_rescan.py` test so that this no longer happens. Testers can verify by applying this diff
```diff
diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp
index 63dab29972..f7d6c5f84a 100644
--- a/src/wallet/wallet.cpp
+++ b/src/wallet/wallet.cpp
@@ -1898,7 +1898,7 @@ CWallet::ScanResult CWallet::ScanForWalletTransactions(const uint256& start_bloc
bool fetch_block{true};
if (fast_rescan_filter) {
- fast_rescan_filter->UpdateIfNeeded();
+ // fast_rescan_filter->UpdateIfNeeded();
auto matches_block{fast_rescan_filter->MatchesBlock(block_hash)};
if (matches_block.has_value()) {
if (*matches_block) {
```
and running the `wallet_fast_rescan.py` test. The test will pass on master but fail on this PR.
ACKs for top commit:
achow101:
ACK 92287ae753
Bortlesboat:
re-ACK 92287ae753
rkrux:
tACK 92287ae
ismaelsadeeq:
Tested ACK 92287ae753
Tree-SHA512: bcd66db0be6604b084230fa3d3aa8d99f5a1a679a7a92592a5e8962abbcf35a14fb6883f25c9e8e6c4799893b774b1c6766876587417f35c4190562ef5ad39fb
0026b330c4 wallet: fix amount computed as boolean in coin selection (furszy)
Pull request description:
Stumbled upon this tiny bug. This has been working by accident.
The comparison is evaluated first, so `total_amount` ends up holding a boolean instead of the actual amount.
It can be verified by adding the value to the returned error message and running the `wallet_create_tx.py`
test.
Note:
I assume something like `-Wparentheses` in CI (or similar) should help us catching similar issues elsewhere.
ACKs for top commit:
fjahr:
utACK 0026b330c4
achow101:
ACK 0026b330c4
andrewtoth:
utACK 0026b330c4
luke-jr:
utACK 0026b330c4
Tree-SHA512: 289c1eb34e59caae0a9e6814a14e4a7ba72f26e3b26717bb3f9e60335c9c5efcebe7e5997f799752096cf91df416a82b8677a9900e5ec54b6d13921d4299be96
b149a28f6b depends: Do not consider `CC` environment variable when detecting system (Hennadii Stepanov)
Pull request description:
On the master branch @ 3c88eac28e, consider the following commands in the `depends` subdirectory:
```sh
$ make print-build HOST=i686-pc-linux-gnu CC="clang -m32"
build=x86_64-pc-linux-gnu
$ make print-host HOST=i686-pc-linux-gnu CC="clang -m32"
host=i686-pc-linux-gnu
```
The printed variable values are expected.
However, switching the `CC` variable context from Makefile to the shell environment breaks expectations:
```sh
$ CC="clang -m32" make print-build HOST=i686-pc-linux-gnu
build=i686-pc-linux-gnu
$ CC="clang -m32" make print-host HOST=i686-pc-linux-gnu
host=i686-pc-linux-gnu
```
This PR fixes this issue.
#### UPDATE 2026-01-20
On the master branch @ 7f5ebef56a:
```
$ gmake print-build HOST=i686-pc-linux-gnu CC="clang -m32"
build=i686-pc-linux-gnu
$ gmake print-host HOST=i686-pc-linux-gnu CC="clang -m32"
host=i686-pc-linux-gnu
```
ACKs for top commit:
sedited:
Re-ACK b149a28f6b
ryanofsky:
Code review ACK b149a28f6b. `env --unset` was replaced with `unset &&` since last review. I still think it could be better to write `CC=$(build_CC)` here even if `build_CC` may not be defined at this point (https://github.com/bitcoin/bitcoin/pull/29963#issuecomment-3774229317) because it makes intent of the code more obvious, but current PR is already an improvement
Tree-SHA512: bd498706ad46aab93192e21b7cc30c34a714c5f31601122752fc94416dc51846b8d4eaf5d1c3250ba64d4eadf3fd43c9f7f5d9e178a47ee2165474ac6833fa31
c68e3d2c57 doc: add release notes for Tor PoW defenses (Vasil Dimov)
4bae84c94a doc: add a hint to enable PoW defenses to manual hidden services (Vasil Dimov)
4c6798a3d3 tor: enable PoW defenses for automatically created hidden services (Vasil Dimov)
fb993f7604 tor, fuzz: reuse constants instead of duplicating (Vasil Dimov)
Pull request description:
Enable [PoW defenses](https://tpo.pages.torproject.net/onion-services/ecosystem/technology/security/pow/) for hidden services that we create via Tor Control using the [`ADD_ONION` command](https://spec.torproject.org/control-spec/commands.html#add_onion).
The ability to do that has been added in [tor-0.4.9.2-alpha](02c1804446). Previous versions return a syntax error to the `ADD_ONION` command with `PoWDefensesEnabled=1`, so the approach here is to try with PoW and if we get syntax error, then retry without PoW.
Also update `doc/tor.md` with a hint on enabling PoW on manually configured Tor hidden services.
ACKs for top commit:
willcl-ark:
ACK c68e3d2c57
fjahr:
tACK c68e3d2c57
sedited:
ACK c68e3d2c57
Tree-SHA512: 56f57bc770b89389c35a4c0bc2a28804d17b1479ecd4d9b764695d6c9d2994425aee759e71658d7b57088bbe43ce90b94fb972f66d79ef903e0c1a4d6c4562f3
StdLockGuard and clang's thread safety annotations did not ensure that
the lock it was taking was not already held. Add a STDLOCK() macro which
uses an annotated StdMutex::CheckNotHeld() function to correct that.
fa70b9ebaa ci: Temporarily use clang in valgrind tasks (MarcoFalke)
faf3ef4ee7 ci: Clarify why valgrind task has gui disabled (MarcoFalke)
fadb77169b test: Scale feature_dbcrash.py timeout with factor (MarcoFalke)
Pull request description:
valgrind currently does not work on GCC compiled executables, due to an upstream bug. https://bugs.kde.org/show_bug.cgi?id=472329
So temporarily switch to clang, so that a long term solution can be figured out in the meantime.
ACKs for top commit:
l0rinc:
ACK fa70b9ebaa
fanquake:
ACK fa70b9ebaa - also checked that it doesn't currently work under aarch64.
Tree-SHA512: 2e7c7a709311efa7bf29c3f9b1db60886b189b2d2bfebb516062163d65f0d7e8de3b6fc21c94cd62f6bd7e786e9c36fba55c4bae956b849851eb8b08e772c03e
578525d31d depends: Remove no longer necessary `dsymutil` (Hennadii Stepanov)
Pull request description:
I can't see where `dsymutil` is used. For example, a shared library under LTO builds fine:
```
cmake -B build --toolchain depends/arm64-apple-darwin/toolchain.cmake -DCMAKE_INTERPROCEDURAL_OPTIMIZATION=ON -DBUILD_KERNEL_LIB=ON -DBUILD_SHARED_LIBS=ON
cmake --build build -t libbitcoinkernel
```
ACKs for top commit:
fanquake:
ACK 578525d31d
Tree-SHA512: 41e7601e26f639383bfa78ceb97e45d03e6cf098cf636bc4f3274360516bb78753aacfd89c8541b38ee4f39cbbf7c7b7a6eb8dc9a653f4438392cd61678e80ce
0fe6fccec2 doc: Document rationale for using `IWYU pragma: export` (Hennadii Stepanov)
cfa3b10d50 iwyu, doc: Document `IWYU pragma: export` for `<logging/categories.h>` (Hennadii Stepanov)
015bea05e6 iwyu, doc: Document `IWYU pragma: export` for `<chrono>` (Hennadii Stepanov)
48bfcfedec iwyu, doc: Document `IWYU pragma: export` for `<threadsafety.h>` (Hennadii Stepanov)
179abb387f refactor: Move `StdMutex` to its own header (Hennadii Stepanov)
6d2952c3c3 serialize: Add missing `<span>` header (Hennadii Stepanov)
Pull request description:
This PR is a prerequisite for https://github.com/bitcoin/bitcoin/pull/34448. It was split into a separate PR to limit the scope and minimize potential merge conflicts.
The first commit improves the accuracy of IWYU suggestions within our heavily templated code. Note that, for now, the `serialize.h` header itself is excluded from IWYU inspection because it lacks a corresponding source file.
The remaining commits follow the Developer Notes [guidance](https://github.com/bitcoin/bitcoin/blob/master/doc/developer-notes.md#using-iwyu):
> Use `IWYU pragma: export` very sparingly, as this enforces transitive inclusion of headers and undermines the specific purpose of IWYU.
ACKs for top commit:
maflcko:
review ACK 0fe6fccec2👤
ajtowns:
utACK 0fe6fccec2
Tree-SHA512: dc2d4e3ff78b9707a1a26cb9b1c0a456de0d33c59e773bbf692344c2fceaff8936317479c5e898038f29134bc0e5d9d1ef7350e53512dd8e262f46ede578c4f9
7a9304f887 depends: Fix cross-compiling on macOS for Windows (Hennadii Stepanov)
Pull request description:
1. Use `build_os` instead of `host_os` for native packages.
2. `XCODE_VERSION` is available only for `darwin` hosts. Therefore, simply disable the Xcode version check for `native_qt`.
Fixes https://github.com/bitcoin/bitcoin/issues/34874.
ACKs for top commit:
fanquake:
ACK 7a9304f887
Tree-SHA512: ef3349de19f3cdb6f445d44f8650815ded5dbe359faafc02941b2f2f0296905aaaac67a4916372b17de58bebabcbcdcbc21af6fe255ebb8f4cdfab00ff257602
0dc337f73d gui: Fix TransactionsView on setCurrentWallet (pablomartin4btc)
Pull request description:
<details>
<summary>Currenlty on <code>master</code>, when the "mask values" checkbox is ticked if the user selects a different wallet, the history action is enable and if the user clicks on it can see all the transactions in the transaction view.</summary>
</details>
<details>
<summary>This PR fixes it.</summary>
</details>
Note for maintainers: this needs to be backported to 25.x and 26.x.
ACKs for top commit:
hebasto:
ACK 0dc337f73d, tested on Fedora 43.
Tree-SHA512: 54581546917f87b4c1db0ff1eaa1962ee6eb078285dbb205b4c8d027c3e350f3dc46409b376948c10e668f9487b7a5a70bab0dff5faf510deab1a54452f7f0e5
The comparison is evaluated before the assignment, so total_amount
ends up holding a boolean instead of the actual amount:
total_amount = (a - b < c)
which is not what we want here. This has been working by accident.
The generateblock RPC creates blocks where the coinbase only includes
the block subsidy, omitting transaction fees. Document this behavior
in the RPC help text to avoid confusion.
refs #31684
74f71c5054 Remove Taproot activation height (Sjors Provoost)
Pull request description:
Drop `DEPLOYMENT_TAPROOT` from `consensus.vDeployments`.
Now that the commit (7c08d81e11) which changes taproot to be enforced for all blocks is included in v24.0, it seems a good time to remove no longer needed non-consensus code.
Clarify what is considered a `BuriedDeployment`.
We drop taproot from `getdeploymentinfo` RPC, rather than mark it as `buried`, because this is not a buried deployment in the sense of [BIP 90](https://github.com/bitcoin/bips/blob/master/bip-0090.mediawiki). This is because the activation height has been completely removed from the code, unlike the hardcoded `DEPLOYMENT_SEGWIT` height which is still relied on.[^1]
See discussion in #24737 and #26162.
[^1]: `DEPLOYMENT_SEGWIT` is used in `IsBlockMutated` to determine if witness data is allowed, it's used for [BIP147](https://github.com/bitcoin/bips/blob/master/bip-0147.mediawiki), to trigger `NeedsRedownload()` for users who upgraded after a decade, and for a few other things.
ACKs for top commit:
ajtowns:
reACK 74f71c5054
achow101:
ACK 74f71c5054
sedited:
Re-ACK 74f71c5054
darosior:
utACK 74f71c5054
Tree-SHA512: 217e0ee2e144ccfb04cf012f45b75d08f8541287a5531bd18aa81e38bad2f38d28b772137f471c46b63875840ec044cb61a2a832e3a9e89a6183e8ab36b1b9c9
The GHA Windows image contains two vcpkg installations: one vendored by
VS (`VCPKG_ROOT`) and an independent one (`VCPKG_INSTALLATION_ROOT`).
Our build documentation recommends using the VS-vendored instance to
minimize user effort. While this option previously failed to build in
the CI, forcing us to use the independent installation, it is now
working correctly.
This change removes the no-longer-needed workaround.
The IPC mining tests (interface_ipc_mining.py) currently use
hardcoded timeouts (e.g., 1000ms, 60000ms) for operations like
waitTipChanged and waiting for block templates. In heavily
loaded CI environments, such as those running sanitizers with
high parallelism, these hardcoded timeouts can be too short,
leading to spurious test failures and brittleness.
This commit multiplies these timeout variables by the test
suite's global `self.options.timeout_factor`. This ensures that
the IPC wait conditions scale appropriately when the test suite
is run with a higher timeout factor, making the tests robust
against slow execution environments.
Addresses CI brittleness observed in bitcoin-core/libmultiprocess#253.
Add a test case to interface_ipc_mining.py to verify that the IPC
server correctly handles and reports serialization errors rather than
crashing the node.
This covers the scenario where submitSolution is called with data
that cannot be deserialized, as discussed in #33341
Also introduces the assert_capnp_failed helper in ipc_util.py to
cleanly handle macOS-specific Cap'n Proto exception strings, and
refactors an existing block weight test to use it.
The async routines in both interface_ipc.py and interface_ipc_mining.py
contain redundant code to initialize the mining proxy object.
Move the make_mining_ctx helper into test_framework/ipc_util.py and
update both test files to use it. This removes the boilerplate and
prevents code duplication across the IPC test suite.
This adds a complementary test to interface_ipc_mining.py to ensure
that createNewBlock() wakes up immediately once submitblock advances
the tip, rather than needlessly waiting for the cooldown timer to
expire on its own.
a1f22a0a6b test: Suppress another unsolicited `mock_process/*` output (Hennadii Stepanov)
Pull request description:
This is a follow-up to https://github.com/bitcoin/bitcoin/pull/33929.
The[ `mock_process/*`](390e7d61bd/src/test/mock_process.cpp (L10)) test cases, which serve as helpers for [`system_tests`](390e7d61bd/src/test/system_tests.cpp (L23)) rather than actual tests, are invoked in a way that suppresses unsolicited output to stdout or stderr to keep the test results reproducible.
However, in debug builds, the Windows CRT still prints false-positive memory leak dumps to stderr.
This PR handles this specific case and documents the other suppressions.
ACKs for top commit:
maflcko:
lgtm ACK a1f22a0a6b
sedited:
ACK a1f22a0a6b
Tree-SHA512: 480f0f74ce50b6fb315bfeb6f6d3a4a4791557a6177aa995197c002bf871f878573df0f313344206f82e4d54c7a62d7cea2fdcb8cd96475b4b6cc7d4ffaf0538
1. Use `build_os` instead of `host_os` for native packages.
2. `XCODE_VERSION` is available only for `darwin` hosts. Therefore,
simply disable the Xcode version check for `native_qt`.
faaea7895f refactor: Use current_time over redundant call to Now() (MarcoFalke)
3333c5023f refactor: Use NodeClock::time_point for m_addr_token_timestamp (MarcoFalke)
fa55723b8f move-only: Extract ProcessAddrs() helper (MarcoFalke)
Pull request description:
It is a bit confusing to have some code use the deprecated `GetTime`, which returns a duration and not a time point, and other code to use `NodeClock` time points.
Fix one place `m_addr_token_timestamp` to use `NodeClock::time_point`.
Also:
* Extract a `ProcessAddrs` helper, similar to the other `Process*()` helpers, to cut down the `ProcessMessage` with a massive scope.
* Rename the confusing `current_a_time` to `now_seconds`. (The `a` in this context refers to the removed "adjusted" time, see commit fadd8b2676, which removed adjusted time here)
ACKs for top commit:
l0rinc:
ACK faaea7895f
ajtowns:
reACK faaea7895f
sedited:
Re-ACK faaea7895f
Tree-SHA512: 67ad13e9d7b88e08e3d723e6b7cd598b38df2a004f5c2338b24f2992e25ae9d8fb8e5325c9c94171e551fe86d87e3e3ec1fe6baae64edbf6b5c125f408ee64e4
b14f2c76a1 tests: applied PYTHON_GIL to the env for every test (kevkevinpal)
Pull request description:
## Summay
If a user is running python3.14.0t they would see a warning log that would fail the integration test suite.
This change adds `PYTHON_GIL=1` to the env when running our functional test suite to ensure that the tests pass for users running python3.14.0t and are not manually setting `PYTHON_GIL=1`.
This resolves https://github.com/bitcoin/bitcoin/issues/33582
### Tests before and after
#### Before
```
./build/test/functional/test_runner.py interface_ipc.py
Temporary test directory at /tmp/test_runner_₿_🏃_20260319_142327
Remaining jobs: [interface_ipc.py]
1/1 - interface_ipc.py failed, Duration: 2 s
stdout:
2026-03-19T18:23:27.330123Z TestFramework (INFO): PRNG seed is: 4933091336597497631
2026-03-19T18:23:27.380917Z TestFramework (INFO): Initializing test directory /tmp/test_runner_₿_🏃_20260319_142327/interface_ipc_0
2026-03-19T18:23:28.625944Z TestFramework (INFO): Running echo test
2026-03-19T18:23:28.635856Z TestFramework (INFO): Running mining test
2026-03-19T18:23:28.648965Z TestFramework (INFO): Running deprecated mining interface test
2026-03-19T18:23:28.653589Z TestFramework (INFO): Running disconnect during BlockTemplate.waitNext
2026-03-19T18:23:28.821124Z TestFramework (INFO): Running thread busy test
2026-03-19T18:23:29.195589Z TestFramework (INFO): Stopping nodes
2026-03-19T18:23:29.299135Z TestFramework (INFO): Cleaning up /tmp/test_runner_₿_🏃_20260319_142327/interface_ipc_0 on exit
2026-03-19T18:23:29.299329Z TestFramework (INFO): Tests successful
stderr:
<frozen importlib._bootstrap>:491: RuntimeWarning: The global interpreter lock (GIL) has been enabled to load module 'capnp.lib.capnp', which has not declared that it can run safely without the GIL. To override this behavior and keep the GIL disabled (at your own risk), run with PYTHON_GIL=0 or -Xgil=0.
TEST | STATUS | DURATION
interface_ipc.py | ✖ Failed | 2 s
ALL | ✖ Failed | 2 s (accumulated)
Runtime: 2 s
```
#### After
```
./build/test/functional/test_runner.py interface_ipc.py
Temporary test directory at /tmp/test_runner_₿_🏃_20260319_142221
Remaining jobs: [interface_ipc.py]
1/1 - interface_ipc.py passed, Duration: 2 s
TEST | STATUS | DURATION
interface_ipc.py | ✓ Passed | 2 s
ALL | ✓ Passed | 2 s (accumulated)
Runtime: 2 s
```
ACKs for top commit:
maflcko:
review ACK b14f2c76a1
fanquake:
ACK b14f2c76a1
Tree-SHA512: e5862d2e9211154d4834c88864e8c4e35de195986511ba151871d39266d177e0718960b28020e815ef6b353a0d82800b7cb68e9a6dee82fc85f12d8705e787a8
658e68f95b scripted-diff: Rename `WAIT_TIMEOUT` to `TEST_WAIT_TIMEOUT` (Hennadii Stepanov)
Pull request description:
On Windows, the `winerror.h` header defines `WAIT_TIMEOUT` as a macro.
This introduces a fragile dependency on header inclusion order: if Windows headers happen to be included before using `WAIT_TIMEOUT`, the preprocessor expands it into a numeric literal, causing syntax errors.
Rename the variable to `TEST_WAIT_TIMEOUT` to remove this fragility and avoid the collision entirely.
Split from https://github.com/bitcoin/bitcoin/pull/34448.
Similar to https://github.com/bitcoin/bitcoin/pull/34454.
ACKs for top commit:
w0xlt:
ACK 658e68f95b
Tree-SHA512: 90cf8927e4e41dee24d51fb2ea3335526ff5da4180c24d776d59b642794715b3c6558628088fbc28236d6ac4fffb9a27167fe309cb94ebf04f04c6e5cf957ad5
fa71c6e84c ci: Avoid intermittent Windows generate download failures (MarcoFalke)
Pull request description:
The CI Windows step to generate the build system is problematic, because with a clean cache, it will download artifacts over the network. This may intermittently fail due to intermittent network issues.
Fix this issue, like all other network issues in CI, by retrying once.
ACKs for top commit:
hodlinator:
ACK fa71c6e84c
hebasto:
ACK fa71c6e84c, I have reviewed the code and it looks OK.
Tree-SHA512: 9915e84b6015116cce86a25b4f77e545baef1f26fabe767c8bb07a009b075f76c27f9172dd23f78aa8017fd611cea850b1e985a357bd0b24543e63e1fd85cb6d
e76e886581 guix: doc: zdiff3 doesn't work (David Gumberg)
ea1be38677 guix: doc: Suggest guix-install.sh --uninstall (David Gumberg)
Pull request description:
Add a note about guix issues with git `merge.conflictstyle` being set to `zdiff3`, and add information about how to uninstall for users of `guix-install.sh`
ACKs for top commit:
achow101:
ACK e76e886581
hebasto:
ACK e76e886581.
sedited:
utACK e76e886581
Tree-SHA512: e9edc49851579c52e7ac762221d0bb51c928da4dff5566ece766af7f7eb75466831a76f885ccc5a26207c84b846e3f42bae26e80ddece3df1611de2c2320c28a
d8f4e7caf0 doc: add release notes (ismaelsadeeq)
248c175e3d test: ensure `ValidateInputsStandardness` optionally returns debug string (ismaelsadeeq)
d2716e9e5b policy: update `AreInputsStandard` to return error string (ismaelsadeeq)
Pull request description:
This PR is another attempt at #13525.
Transactions that fail `PreChecks` Validation due to non-standard inputs now returns invalid validation state`TxValidationResult::TX_INPUTS_NOT_STANDARD` along with a debug error message.
Previously, the debug error message for non-standard inputs do not specify why the inputs were considered non-standard.
Instead, the same error string, `bad-txns-nonstandard-inputs`, used for all types of non-standard input scriptSigs.
This PR updates the `AreInputsStandard` to include the reason why inputs are non-standard in the debug message.
This improves the `Precheck` debug message to be more descriptive.
Furthermore, I have addressed all remaining comments from #13525 in this PR.
ACKs for top commit:
instagibbs:
ACK d8f4e7caf0
achow101:
ACK d8f4e7caf0
sedited:
Re-ACK d8f4e7caf0
Tree-SHA512: 19b1a73c68584522f863b9ee2c8d3a735348667f3628dc51e36be3ba59158509509fcc1ffc5683555112c09c8b14da3ad140bb879eac629b6f60b8313cfd8b91
fa4ec13b44 build: Enable -Wcovered-switch-default (MarcoFalke)
fa2670bd4b refactor: Enable -Wswitch in exhaustive switch (MarcoFalke)
Pull request description:
The compiler flag `-Wswitch` is enabled. However, it can not fire when a `default:` case exists. Fix that by removing the default case where a switch is already handling all cases exhaustively.
Also, enable `-Wcovered-switch-default` to catch those cases at compile time in the future.
Also, apply the comment according to the dev notes.
Can be reviewed via `--ignore-all-space`
ACKs for top commit:
stickies-v:
re-ACK fa4ec13b44, no changes except for addressing silent merge conflict from d339884f1d
l0rinc:
ACK fa4ec13b44
achow101:
ACK fa4ec13b44
sedited:
ACK fa4ec13b44
Tree-SHA512: 8dd9e71a8cd338255f43448a59a1a4d40a9fc16e19a707cc10fb71442d4df9f82a0e5fae77868ef49cd0ea27fdd972687572c1a50b6aba7e08c6ce87576afc6a
When a large cluster of unconfirmed transactions exceeds the limit,
calculateCombinedBumpFee() returns std::nullopt.
Previously, we continued executing and the optional value was
accessed unconditionally, leading to a std::bad_optional_access
exception.
Fix this by returning early when the returned bumped fee is null.
Note:
This is a crash for the GUI, and an uncaught exception for the RPC
bumpfee and psbtbumpfee.
