# MutantHub mutant #1944: Logical operator mutation at txgraph.cpp:594
# Repository: bitcoin/bitcoin @ ca45461ddb2421b4267dad0b7d7bcec88c07eba4
# File: src/txgraph.cpp:594-594
# Review: APPROVED; outcome: KILLED
--- a/src/txgraph.cpp
+++ b/src/txgraph.cpp
@@ -594,1 +594,1 @@
-        bool IsMissing() const noexcept { return cluster == nullptr && index == 0; }
+        bool IsMissing() const noexcept { return cluster == nullptr || index == 0; }