mercurial/revlog.py

--- a/mercurial/revlog.py	Fri May 29 17:00:55 2015 -0500
+++ b/mercurial/revlog.py	Fri May 29 14:24:50 2015 -0700
@@ -726,7 +726,7 @@
             return self._headrevs()
 
     def computephases(self, roots):
-        return self.index.computephases(roots)
+        return self.index.computephasesmapsets(roots)
 
     def _headrevs(self):
         count = len(self)