--- a/selectors.py	Tue Feb 23 12:52:57 2010 +0100
+++ b/selectors.py	Tue Feb 23 12:59:30 2010 +0100
@@ -528,6 +528,9 @@
             return 0
         return 1
 
+    def score_class(self, eclass, req):
+        return 1 # necessarily true if we're there
+
 
 class implements(ImplementsMixIn, EClassSelector):
     """Return non-zero score for entity that are of the given type(s) or