--- a/tests/autodiff.py	Sat Jun 18 16:52:51 2011 -0500
+++ b/tests/autodiff.py	Sat Jun 18 16:52:51 2011 -0500
@@ -29,7 +29,7 @@
         raise util.Abort('--git must be yes, no or auto')
 
     node1, node2 = scmutil.revpair(repo, [])
-    m = scmutil.match(repo, pats, opts)
+    m = scmutil.match(repo[node2], pats, opts)
     it = patch.diff(repo, node1, node2, match=m, opts=diffopts,
                     losedatafn=losedatafn)
     for chunk in it: