--- a/mercurial/revlog.py Sat Dec 05 22:19:48 2015 -0500 +++ b/mercurial/revlog.py Fri Dec 04 17:22:26 2015 -0800 @@ -1406,7 +1406,6 @@ curr = len(self) prev = curr - 1 base = chainbase = curr - chainlen = None offset = self.end(prev) delta = None if self._basecache is None: