8220818: Validator does not find missing match for keyref error
Reviewed-by: lancea
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<Root xmlns="http://www.example.org/root">
<Object name="object2">
<Members>
<Collection name="Collection1">
<CollectionMembers>
<CollectionMember name="Collectionmember1" type="object1" />
<CollectionMember name="Collectionmember2" >
<Members>
<String name="string1" />
</Members>
</CollectionMember>
</CollectionMembers>
</Collection>
</Members>
</Object>
</Root>