Stefan Monnier writes:
> No, no, don't add a symbol-qnames variable here, use the same
> representation I proposed for xml-ns instead.  And similarly don't add
> any argument to xml-maybe-do-ns.  This should result in a patch that
> touches very little code (just the computation of xml-ns above and its
> use in xml-maybe-do-ns, and not much else).

OK, next try (only attaching diff to xml.el, since url-dav is unchanged).

-David