result/dav4

------- test/dav4 -----------
<?xml version="1.0"?>
<?xml:namespace ns="http://www.w3.com/standards/z39.50/" prefix="Z"?>
<?xml:namespace ns="http://www.ietf.org/standards/dav/" prefix="D"?>
<D:propertyupdate>
  <D:set>
    <D:prop>
      <Z:authors>
        <Z:Author>Jim Whitehead</Z:Author>
        <Z:Author>Roy Fielding</Z:Author>
      </Z:authors>
    </D:prop>
  </D:set>
  <D:remove>
    <D:prop>
      <Z:Copyright-Owner/>
    </D:prop>
  </D:remove>
</D:propertyupdate>