--- a/mercurial/localrepo.py	Tue Apr 15 15:20:33 2014 -0400
+++ b/mercurial/localrepo.py	Tue Apr 15 16:42:52 2014 -0400
@@ -123,6 +123,7 @@
 
         This function handles the repo locking itself."""
         try:
+            cg = exchange.readbundle(self.ui, cg, None)
             return exchange.unbundle(self._repo, cg, heads, 'push', url)
         except exchange.PushRaced, exc:
             raise error.ResponseError(_('push failed:'), exc.message)