bug#70030: 29.3; package.el confused by ELPA nongnu archive meta-data for `annotate` listing multiple maintainers

[Herbert Valerio Riedel <hvr@gnu.org>]

Philip Kaludercic <philipk@posteo.net> writes:

>> I'm not sure if this a bug in package.el proper or rather an ELPA
>> archive bug:
>>
>> When invoking `M-x describe-package annotate` to describe the `annotate`
>> package from https://elpa.nongnu.org/nongnu/annotate.html the function
>> errors out with
>>
>>     describe-package-1: Wrong type argument: char-or-string-p, ("Bastian Bechtold" . "bastibe.dev@mailbox.org")

...

> This sounds like a duplicate of bug#68288, that was resolved with
> 73cb931e5bab1b956f0569cd542468cfa7f4c9a7.  I cannot reproduce the bug on
> master, either with annotate or with marginalia.

Oh, sorry for the noise then... I should have tried harder to find a
preexisting bug report about this :-/


However, what shall be done about entries with malformed :maintainer
properties such as

--8<---------------cut here---------------start------------->8---
     (gnuplot .
          [(0 8 1)
           ((emacs
             (25 1)))
           "Major-mode and interactive frontend for gnuplot" tar
           ((:url . "https://github.com/emacs-gnuplot/gnuplot")
            (:keywords "data" "gnuplot" "plotting")
            (:maintainer "Maxime Tréca <maxime@gmail.com>, Daniel Mendler" . "mail@daniel-mendler.de")
            (:authors
             ("Jon Oddie, Bruce Ravel, Phil Type"))
            (:commit . "663a89d263d4f26b996796d01b6a3b783449e0f5"))])
--8<---------------cut here---------------end--------------->8---

is this considered an package bug to be dealt with by the upstream
maintainer or rather a bug in the ELPA archive index creation step (and
whom shall I contact for that?) which apparently extracted the
information from

  https://raw.githubusercontent.com/emacs-gnuplot/gnuplot/0.8.1/gnuplot.el

which states

--8<---------------cut here---------------start------------->8---
;; Author:           Jon Oddie, Bruce Ravel, Phil Type
;; Maintainer:       Maxime Tréca <maxime@gmail.com>, Daniel Mendler <mail@daniel-mendler.de>
;; Created:          1998
;; Version:          0.8.1
;; Keywords:         data gnuplot plotting
;; URL:              https://github.com/emacs-gnuplot/gnuplot
;; Package-Requires: ((emacs "25.1"))
--8<---------------cut here---------------end--------------->8---