# MutantHub mutant #4295: Relational operator mutation at validation.cpp:5504
# Repository: bitcoin/bitcoin @ ddea9196493d3b8fd841a36a6c53efd85dac7a05
# File: src/validation.cpp:5504-5504
# Review: APPROVED; outcome: SURVIVED
--- a/src/validation.cpp
+++ b/src/validation.cpp
@@ -5504,1 +5504,1 @@
-            if (pindex == pindexFirstNotTreeValid) pindexFirstNotTreeValid = nullptr;
+            if (pindex != pindexFirstNotTreeValid) pindexFirstNotTreeValid = nullptr;