# MutantHub mutant #480: Logical operator mutation at psbt.cpp:461
# Repository: bitcoin/bitcoin @ 2f72123f613f3aa1484ed06344039be78dedcb33
# File: src/psbt.cpp:461-461
# Review: APPROVED; outcome: SURVIVED
--- a/src/psbt.cpp
+++ b/src/psbt.cpp
@@ -461,1 +461,1 @@
-    if (time_locktime == std::nullopt && input.time_locktime != std::nullopt) time_locktime = input.time_locktime;
+    if (time_locktime == std::nullopt || input.time_locktime != std::nullopt) time_locktime = input.time_locktime;