diff -r dcdd7f41898d -r 428af94bbccd mercurial/context.py
--- a/mercurial/context.py	Thu Aug 15 15:14:47 2013 -0500
+++ b/mercurial/context.py	Thu Aug 15 15:17:05 2013 -0500
@@ -1578,8 +1578,6 @@
             self._text = editor(self._repo, self, [])
             self._repo.savecommitmessage(self._text)
 
-    def extra(self):
-        return self._extra
     def flags(self, f):
         return self[f].flags()