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mercurial/phases.py
changeset 23631 b8260abfeb7d
parent 23361 936b0ff34346
child 23878 37a92908a382 
--- a/mercurial/phases.py	Thu Dec 18 11:30:10 2014 -0800
+++ b/mercurial/phases.py	Thu Dec 18 11:38:48 2014 -0800
@@ -161,7 +161,7 @@
     def copy(self):
         # Shallow copy meant to ensure isolation in
         # advance/retractboundary(), nothing more.
-        ph = phasecache(None, None, _load=False)
+        ph = self.__class__(None, None, _load=False)
         ph.phaseroots = self.phaseroots[:]
         ph.dirty = self.dirty
         ph.opener = self.opener
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