--- a/hgext/evolve.py	Tue Apr 21 16:52:08 2015 +0200
+++ b/hgext/evolve.py	Wed Apr 22 14:30:23 2015 +0200
@@ -2836,7 +2836,6 @@
     else:
         treefunc = _obsrelsethashtreefm1
 
-    treefunc = _obsrelsethashtree
     for chg, obs in treefunc(repo):
         ui.status('%s %s\n' % (node.hex(chg), node.hex(obs)))