--- a/mercurial/revset.py Fri Oct 03 20:12:02 2014 -0700
+++ b/mercurial/revset.py Fri Oct 03 20:43:48 2014 -0700
@@ -2622,7 +2622,7 @@
"""
self._gen = gen
self._cache = {}
- self._genlist = baseset([])
+ self._genlist = []
self._finished = False
if iterasc is not None:
if iterasc: