# MutantHub mutant #499: Logical operator mutation at psbt.cpp:544
# Repository: bitcoin/bitcoin @ 2f72123f613f3aa1484ed06344039be78dedcb33
# File: src/psbt.cpp:544-544
# Review: APPROVED; outcome: SURVIVED
--- a/src/psbt.cpp
+++ b/src/psbt.cpp
@@ -544,1 +544,1 @@
-    if (witness_script.empty() && !output.witness_script.empty()) witness_script = output.witness_script;
+    if (witness_script.empty() || !output.witness_script.empty()) witness_script = output.witness_script;