bug#53749: 29.0.50; [PATCH] Xref backend for TeX buffers

[Dmitry Gutov]

On 29/04/2024 17:15, David Fussner via Bug reports for GNU Emacs, the 
Swiss army knife of text editors wrote:
> though I had to add a one-liner in xref.el to fix
> what I believe is a minor bug there preventing syntax-propertize from
> doing its work when the temp buffer holds text from a new file. (I can
> provide a recipe for this if you want.)

Yes, could you please expand on it separately?

The rest of the patch description just makes sense to me, and I'd be 
happy to leave (or not) the detailed review to whoever reviews TeX 
contributions around here, but this is something I'll need to pay 
special attention to.