# MutantHub mutant #686: Constant replacement mutation at descriptor.cpp:1119
# Repository: bitcoin/bitcoin @ 1aafd49077041e874d6b5f114927bc37e5b85d71
# File: src/script/descriptor.cpp:1119-1119
# Review: APPROVED; outcome: SURVIVED
--- a/src/script/descriptor.cpp
+++ b/src/script/descriptor.cpp
@@ -1119,1 +1119,1 @@
-    bool IsSingleType() const final { return true; }
+    bool IsSingleType() const final { return false; }