--- a/app/soc/cache/logic.py	Sat Apr 11 22:57:23 2009 +0000
+++ b/app/soc/cache/logic.py	Sat Apr 11 22:58:19 2009 +0000
@@ -35,7 +35,7 @@
   new_filter = {}
 
   for filter_key, value in filter.iteritems():
-    new_value = value.key().name() if isinstance(value, db.Model) else value
+    new_value = value.key().id_or_name() if isinstance(value, db.Model) else value
     new_filter[filter_key] = new_value
 
   return 'query_for_%(kind)s_%(filter)s_%(order)s' % {