Anthony Towns be0857745a validation: only check input scripts once ...

Previously, we would check failing input scripts twice when considering
a transaction for the mempool, in order to distinguish policy failures
from consensus failures. This allowed us both to provide a different
error message and to discourage peers for consensus failures. Because we
are no longer discouraging peers for consensus failures during tx relay,
and because checking a script can be expensive, only do this once.

Also renames non-mandatory-script-verify-flag error to
mempool-script-verify-flag-failed.

NOTE: Backport required additional adjustment in test/functional/feature_block

Github-Pull: #33050
Rebased-From: b29ae9efdf

2025-11-03 21:50:28 +00:00

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