bug#51388: 28.0.60; broken display of message/rfc822 MIME part

[Lars Ingebrigtsen]

Stephen Berman <stephen.berman@gmx.net> writes:

> 0. Save the attached file e.g. as "~/test".
> 1. emacs -Q
> 2. M-x gnus, type `y' at the prompt.
> 3. In the *Group* buffer type `G f test RET'.
> 4. Type RET to enter Gnus Summary mode showing the file as mail.
> 5. In the Summary buffer type RET to open the mail.
> 6. In the Summary buffer type `2 b' to open the buttonized
>    message/rfc822 attachment display in the Article buffer.
> => The attachment is displayed as the untreated raw text of the file
> (i.e. with all headers, quoted-printable-encoded) instead of as a normal
> email, as it is when repeating the recipe in emacs-27.

I've now fixed this on the emacs-28 branch.

-- 
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   bloggy blog: http://lars.ingebrigtsen.no