--- a/hgext/strip.py	Tue Nov 17 17:00:54 2015 -0800
+++ b/hgext/strip.py	Tue Nov 17 17:02:35 2015 -0800
@@ -208,8 +208,7 @@
             repo.dirstate.write(repo.currenttransaction())
 
             # clear resolve state
-            ms = merge.mergestate(repo)
-            ms.reset(repo['.'].node())
+            merge.mergestate.clean(repo, repo['.'].node())
 
             update = False