--- /usr/local/src/gestao_de_risco/Zope-2.9.3/build/lib.linux-i686-2.4/Products/PluginIndexes/common/UnIndex.py	2006-05-12 08:53:41.000000000 -0300
+++ UnIndex.py	2006-08-04 16:02:54.664967800 -0300
@@ -276,6 +276,8 @@
                 datum = datum()
         except AttributeError:
             datum = _marker
+        except TypeError:
+            datum = _marker
         return datum
 
     def numObjects(self):