--- a/mercurial/mergeutil.py	Mon Nov 23 16:20:02 2020 -0800
+++ b/mercurial/mergeutil.py	Mon Nov 23 16:48:13 2020 -0800
@@ -14,6 +14,6 @@
 
 def checkunresolved(ms):
     if list(ms.unresolved()):
-        raise error.Abort(
+        raise error.StateError(
             _(b"unresolved merge conflicts (see 'hg help resolve')")
         )