# MutantHub mutant #4037: Relational operator mutation at validation.cpp:2431
# Repository: bitcoin/bitcoin @ ddea9196493d3b8fd841a36a6c53efd85dac7a05
# File: src/validation.cpp:2431-2431
# Review: APPROVED; outcome: KILLED
--- a/src/validation.cpp
+++ b/src/validation.cpp
@@ -2431,1 +2431,1 @@
-        } else if (it->second.GetAncestor(pindex->nHeight) != pindex) {
+        } else if (it->second.GetAncestor(pindex->nHeight) == pindex) {