diff -r c3fc17d79e85 -r 892fc9e0c8df entity.py
--- a/entity.py	Wed Mar 27 14:46:55 2013 +0100
+++ b/entity.py	Wed Mar 27 15:03:14 2013 +0100
@@ -37,7 +37,6 @@
 from cubicweb.utils import support_args
 from cubicweb.rset import ResultSet
 from cubicweb.appobject import AppObject
-from cubicweb.req import _check_cw_unsafe
 from cubicweb.schema import (RQLVocabularyConstraint, RQLConstraint,
                              GeneratedConstraint)
 from cubicweb.rqlrewrite import RQLRewriter
@@ -1287,7 +1286,6 @@
         an entity or eid, a list of entities or eids, or None (meaning that all
         relations of the given type from or to this object should be deleted).
         """
-        _check_cw_unsafe(kwargs)
         assert kwargs
         assert self.cw_is_saved(), "should not call set_attributes while entity "\
                "hasn't been saved yet"