diff -r 69a37d56c7fb -r cd9407400ced hgext/obsolete.py
--- a/hgext/obsolete.py	Mon Apr 23 18:54:17 2012 +0200
+++ b/hgext/obsolete.py	Tue Apr 24 15:58:19 2012 +0200
@@ -364,7 +364,6 @@
     opull = repo.pull
     opush = repo.push
     o_rollback = repo._rollback
-    ocancopy = repo.cancopy
     o_updatebranchcache = repo.updatebranchcache
 
     # /!\ api change in  Hg 2.2 (97efd26eb9576f39590812ea9) /!\
@@ -512,11 +511,6 @@
             finally:
                 lock.release()
 
-        ### local clone support
-
-        def cancopy(self):
-            """wrapper on cancopy that deny copy if there is obsolete relation"""
-            return ocancopy() and not bool(self._obsobjrels)  # you can't copy if there is obsolete
 
         ### pull // push support