Code review comment for lp:~zorba-coders/zorba/pul-and-xdm-schemas

If the schema is to be used by the collection browser without changes
the attribute "type-name" on elements and attributes in the XDM schema must be optional and not required. Of course it is always known for existing nodes but not for new nodes.

The type information for new elements is not known by the client (and therefore cannot be sent), it is determined by validating the element before inserting it (on the server).