From 6d387af562fc85eee003a269dbea10963e941985 Mon Sep 17 00:00:00 2001
From: Thomas <thomas.giudici@proton.me>
Date: Fri, 12 Jun 2026 08:03:42 +0200
Subject: [PATCH] psbt: remove write-only global xpub tracking set

The explicit duplicate global xpub check was replaced by the generic
duplicate key check in 1e2d146b47, leaving the set unused.
---
 src/psbt.h | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/src/psbt.h b/src/psbt.h
index 9a4c600eadd..32af27ab232 100644
--- a/src/psbt.h
+++ b/src/psbt.h
@@ -1360,9 +1360,6 @@ public:
         // Used for duplicate key detection
         std::set<std::vector<unsigned char>> key_lookup;
 
-        // Track the global xpubs we have already seen. Just for sanity checking
-        std::set<CExtPubKey> global_xpubs;
-
         // Read global data
         bool found_sep = false;
         std::optional<CMutableTransaction> tx;
@@ -1465,7 +1462,6 @@ public:
                     if (!xpub.pubkey.IsFullyValid()) {
                        throw std::ios_base::failure("Invalid pubkey");
                     }
-                    global_xpubs.insert(xpub);
                     // Read in the keypath from stream
                     KeyOriginInfo keypath;
                     DeserializeHDKeypath(s, keypath);