# MutantHub mutant #479: Logical operator mutation at psbt.cpp:460
# Repository: bitcoin/bitcoin @ 2f72123f613f3aa1484ed06344039be78dedcb33
# File: src/psbt.cpp:460-460
# Review: APPROVED; outcome: SURVIVED
--- a/src/psbt.cpp
+++ b/src/psbt.cpp
@@ -460,1 +460,1 @@
-    if (sequence == std::nullopt && input.sequence != std::nullopt) sequence = input.sequence;
+    if (sequence == std::nullopt || input.sequence != std::nullopt) sequence = input.sequence;