Added comment about lack of support of children

Current predicate category table is not filled enough with children nodes and will thus not
select everything it should.

product/ERP5/Tool/DomainTool.py

@@ -71,6 +71,9 @@ class DomainTool(BaseTool):
       # It is not a correct name, as pointed out by Jerome. But instead of
       # searching for another name, it would be much better to just remove it.
       """
+      XXX  - we should hope that the predicate category table is filled well.... with
+             all children else it will fail . stricy membershop params is nonsense
+
       Search all predicates which corresponds to this particular 
       context.