--- a/selectors.py	Wed May 25 08:51:45 2011 +0200
+++ b/selectors.py	Wed May 25 10:58:43 2011 +0200
@@ -1342,6 +1342,8 @@
 
     @lltrace
     def __call__(self, cls, req, rset=None, row=None, col=0, **kwargs):
+        if not req.cnx:
+            return 0
         user = req.user
         if user is None:
             return int('guests' in self.expected)