# MutantHub mutant #4263: Logical operator mutation at validation.cpp:5120
# Repository: bitcoin/bitcoin @ ddea9196493d3b8fd841a36a6c53efd85dac7a05
# File: src/validation.cpp:5120-5120
# Review: APPROVED; outcome: KILLED
--- a/src/validation.cpp
+++ b/src/validation.cpp
@@ -5120,1 +5120,1 @@
-                    if (!pindex || (pindex->nStatus & BLOCK_HAVE_DATA) == 0) {
+                    if (!pindex && (pindex->nStatus & BLOCK_HAVE_DATA) == 0) {