bug#63757: 29.0.91 order of package paths changed: random old versions of packages in load-path

[Stefan Monnier via "Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>]

> Run `emacs -Q` and `M-x package-initialize`.
>
> After that `package-alist` contains
>
>    (go-mode #s(package-desc :name go-mode :version
>                             (20170726 555)
>                             :summary "Major mode for the Go programming language"
>                             :reqs nil :kind nil :archive nil
>                             :dir "/home/eab/.emacs.d/elpa/go-mode-20170726.555"
>                             :extras
>                             ((:keywords "languages" "go")
>                              (:url . "https://github.com/dominikh/go-mode.el")
>                              (:commit . "99b06da201afb91e8db0c525c0f3c3590fd92fa6"))
>                             :signed nil)
>             #s(package-desc :name go-mode :version
>                             (20220114 2239)
>                             :summary "Major mode for the Go programming language"
>                             :reqs ((emacs (26 1)))
>                             :kind nil :archive nil
>                             :dir "/home/eab/.emacs.d/elpa/go-mode-20220114.2239"
>                             :extras
>                             ((:url . "https://github.com/dominikh/go-mode.el")
>                              (:keywords "languages" "go")
>                              (:maintainer "The go-mode Authors")
>                              (:authors
>                               ("The go-mode Authors"))
>                              (:commit . "fa2693278637f56759480d2bf203bb8aad107230"))
>                             :signed nil))

Hmm... that definitely looks wrong.  The 2022 version should come first
and the 2017 second.  Either there's a bug in
`package-process-define-package` or `package-alist` is being
(incorrectly) populated by some other function.


        Stefan