--- a/entity.py	Tue Jul 10 10:33:19 2012 +0200
+++ b/entity.py	Tue Jul 10 15:07:52 2012 +0200
@@ -1,4 +1,4 @@
-# copyright 2003-2011 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
+# copyright 2003-2012 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
 # contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
 #
 # This file is part of CubicWeb.
@@ -24,6 +24,7 @@
 from logilab.common import interface
 from logilab.common.decorators import cached
 from logilab.common.deprecation import deprecated
+from logilab.common.registry import yes
 from logilab.mtconverter import TransformData, TransformError, xml_escape
 
 from rql.utils import rqlvar_maker
@@ -34,7 +35,6 @@
 from cubicweb import Unauthorized, typed_eid, neg_role
 from cubicweb.utils import support_args
 from cubicweb.rset import ResultSet
-from cubicweb.selectors import yes
 from cubicweb.appobject import AppObject
 from cubicweb.req import _check_cw_unsafe
 from cubicweb.schema import (RQLVocabularyConstraint, RQLConstraint,