Use 0 as a default version.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@42137 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Configurator/Document/RuleConfiguratorItem.py

@@ -65,7 +65,7 @@ class RuleConfiguratorItem(ConfiguratorItemMixin, XMLObject):
                                                 sort_order='descending',
                                                 reference=reference)
       if len(result):
-        value['version'] = int(result[0].getVersion()) + 1
+        value['version'] = int(result[0].getVersion(0)) + 1
       rule = portal.portal_rules.newContent(**value)
 
       content_list = value.pop('content_list')