# MutantHub mutant #4131: Return value mutation at validation.cpp:4419
# Repository: bitcoin/bitcoin @ ddea9196493d3b8fd841a36a6c53efd85dac7a05
# File: src/validation.cpp:4419-4419
# Review: APPROVED; outcome: SURVIVED
--- a/src/validation.cpp
+++ b/src/validation.cpp
@@ -4419,1 +4419,1 @@
-        if (!fHasMoreOrSameWork) return true; // Don't process less-work chains
+        if (!fHasMoreOrSameWork) return false; // Don't process less-work chains