--- a/mercurial/revlog.py Sat May 16 09:03:21 2015 +0200
+++ b/mercurial/revlog.py Sat May 16 11:28:04 2015 -0700
@@ -12,6 +12,7 @@
"""
# import stuff from node for others to import from revlog
+import collections
from node import bin, hex, nullid, nullrev
from i18n import _
import ancestor, mdiff, parsers, error, util, templatefilters
@@ -485,7 +486,7 @@
# take all ancestors from heads that aren't in has
missing = set()
- visit = util.deque(r for r in heads if r not in has)
+ visit = collections.deque(r for r in heads if r not in has)
while visit:
r = visit.popleft()
if r in missing: