fix a mistake that may cause recording single property as a list or vice-versa.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@31455 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/mixin/property_recordable.py

@@ -70,7 +70,7 @@ class PropertyRecordableMixin:
       else: # should be local property
         value = self.getProperty(id)
     else:
-      if x['type'] in list_types:
+      if property_info['type'] in list_types:
         value = self.getPropertyList(id)
       else:
         value = self.getProperty(id)