diff -r 70ebb4bd8083 -r 62c56c94c77e mercurial/context.py
--- a/mercurial/context.py	Fri Jul 13 14:38:49 2012 +0200
+++ b/mercurial/context.py	Mon Jul 16 17:44:46 2012 +0200
@@ -203,7 +203,7 @@
     def mutable(self):
         return self.phase() > phases.public
     def hidden(self):
-        return self._rev in self._repo.changelog.hiddenrevs
+        return self._rev in self._repo.hiddenrevs
 
     def parents(self):
         """return contexts for each parent changeset"""