Personography discussion (was: Re: [tei-council] datatypes again: make data.key a URI)

[Syd Bauman]

> It seems to me, we should at least have a mechanism to put
> everything except the query string somewhere in the header and let
> @key just provide the query string or #anchor. Such a mechanism
> would also be useful for other cases, for example in @ref at <g>.

Indeed. We already have the mechanism, but currently it is a
special-purpose mechanism for canonical references. We may want to
consider expanding it, but that's potentially a big discussion ...