diff -r d0f8d033cf3c -r 7b120f7f9a7a app/soc/logic/models/base.py
--- a/app/soc/logic/models/base.py	Fri Mar 06 19:06:22 2009 +0000
+++ b/app/soc/logic/models/base.py	Fri Mar 06 22:30:12 2009 +0000
@@ -317,6 +317,8 @@
     query = db.Query(self._model)
 
     for key, value in filter.iteritems():
+      if isinstance(value, list) and len(value) == 1:
+        value = value[0]
       if isinstance(value, list):
         op = '%s IN' % key
         query.filter(op, value)