--- a/mercurial/merge.py	Sat Nov 22 17:09:04 2014 -0600
+++ b/mercurial/merge.py	Mon Nov 24 11:28:46 2014 -0800
@@ -350,7 +350,6 @@
             pmmf.discard(f2)
             pmmf.add(f)
         for f, args, msg in actions['dg']:
-            f2, flags = args
             pmmf.add(f)
         for f, args, msg in actions['m']:
             f1, f2, fa, move, anc = args