# MutantHub mutant #4311: Logical operator mutation at validation.cpp:5624
# Repository: bitcoin/bitcoin @ ddea9196493d3b8fd841a36a6c53efd85dac7a05
# File: src/validation.cpp:5624-5624
# Review: APPROVED; outcome: SURVIVED
--- a/src/validation.cpp
+++ b/src/validation.cpp
@@ -5624,1 +5624,1 @@
-    if (pindex.m_chain_tx_count == 0 || target_block->m_chain_tx_count == 0) {
+    if (pindex.m_chain_tx_count == 0 && target_block->m_chain_tx_count == 0) {