diff -r 45445187d286 -r fe67107094fd mercurial/hg.py
--- a/mercurial/hg.py	Mon Jan 28 13:44:44 2013 +0100
+++ b/mercurial/hg.py	Mon Jan 28 13:56:11 2013 +0100
@@ -558,7 +558,7 @@
         revs = [repo.lookup(rev) for rev in scmutil.revrange(repo, revs)]
 
     other = peer(repo, opts, dest)
-    outgoing = discovery.findcommonoutgoing(repo, other, revs,
+    outgoing = discovery.findcommonoutgoing(repo.unfiltered(), other, revs,
                                             force=opts.get('force'))
     o = outgoing.missing
     if not o: