[1.2.X] Fixed #15116 -- Strip ordering clause from in_bulk() queries, since ordering information will be lost. Thanks to lamby for the report and patch.

Backport of r15457 from trunk.

git-svn-id: http://code.djangoproject.com/svn/django/branches/releases/1.2.X@15459 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/db/models/query.py

@@ -417,6 +417,7 @@ class QuerySet(object):
             return {}
         qs = self._clone()
         qs.query.add_filter(('pk__in', id_list))
+        qs.query.clear_ordering(force_empty=True)
         return dict([(obj._get_pk_val(), obj) for obj in qs.iterator()])
 
     def delete(self):