--- a/hgext/obsolete.py	Fri Jun 22 19:32:18 2012 +0200
+++ b/hgext/obsolete.py	Sat Jun 23 11:14:09 2012 +0200
@@ -844,8 +844,6 @@
             assert len(rootrevs) == 1, rootrevs
             rootnode = self[rootrevs[0]].node()
             for n in oldnodes:
-                if n != rootnode:
-                    self.addobsolete(n, rootnode)
                 self.addobsolete(newnode, n)
 
         def _turn_extinct_secret(self):