# MutantHub mutant #484: Logical operator mutation at psbt.cpp:472
# Repository: bitcoin/bitcoin @ 2f72123f613f3aa1484ed06344039be78dedcb33
# File: src/psbt.cpp:472-472
# Review: APPROVED; outcome: SURVIVED
--- a/src/psbt.cpp
+++ b/src/psbt.cpp
@@ -472,1 +472,1 @@
-           || !m_tap_key_sig.empty()
+           && !m_tap_key_sig.empty()