XML attributes in property values

If a property value contained in a PROPPATCH “set” instruction contains XML attributes associated with the XML elements of the property, what should the server do with them?
- 1. Store them, and return them on later retrievals
- 2. Throw them away

If a property value contained in a PROPPATCH “set” instruction contains XML attributes associated with the XML elements of the property, what should the server do with them?