Prevent KeyError if type information does not exist in type tool.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@18230 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Type/Accessor/Translation.py

@@ -101,7 +101,11 @@ class PropertyTranslationDomainGetter(Method):
       ptype_domain = None
       ptype = instance.getPortalType()
       ptypes_tool = instance.getPortalObject()['portal_types']
-      domain_dict = ptypes_tool[ptype].getPropertyTranslationDomainDict()
+      typeinfo = ptypes_tool.getTypeInfo(ptype)
+      if typeinfo is None:
+        ptype_domain = ''
+      else:
+        domain_dict = typeinfo.getPropertyTranslationDomainDict()
         domain = domain_dict.get(self._original_key)
         if domain is None:
           ptype_domain = ''