bug#40247: 27.0.90; mailcap-mime-data erased when parsing mime parts

[Eli Zaretskii]

> From: "Basil L. Contovounesios" <contovob@tcd.ie>
> Date: Sun, 28 Jun 2020 18:11:00 +0100
> Cc: 40247@debbugs.gnu.org
> 
> I think this is a symptom of the fix for bug#36771, and therefore
> affects systems with mailcap files as well.
> 
> Since it affects me too and block Emacs 27.1, I plan to look into it in
> about a week's time if no-one beats me to it.

That might be too late: we hope to have the first RC this week or the
next.

Thanks.