--- a/mercurial/revset.py	Mon Jun 07 20:03:32 2010 +0200
+++ b/mercurial/revset.py	Tue Jun 08 09:30:33 2010 +0200
@@ -288,7 +288,6 @@
                 continue
     else:
         for r in subset:
-            c = repo[r]
             for f in repo[r].manifest():
                 if m(f):
                     s.append(r)