I installed emacs 28 from git-HEAD and it looks like this bug really has
now been fixed.

GNU Emacs 28.0.50 (build 1, x86_64-apple-darwin19.6.0, NS appkit-1894.60
Version 10.15.7 (Build 19H114)) of 2020-12-27

Thanks!

     -Heikki

Heikki Lehväslaiho - skype:heikki_lehvaslaiho cell: +358 40 850 6640
http://about.me/heikki


On Fri, 25 Dec 2020 at 23:47, Lars Ingebrigtsen <larsi@gnus.org> wrote:

> Heikki Lehvaslaiho <heikki.lehvaslaiho@gmail.com> writes:
>
> > Still happens with GNU Emacs 27.1 (build 1, x86_64-apple-darwin19.6.0, NS
> > appkit-1894.60 Version 10.15.7 (Build 19H15)) of 2020-12-02
> >
> > 1. Upgraded all packages
> > 2. Selected one randomly: "package", package was upgraded from 0.5.2 to
> 0.5.3
> > 3. M-x describe-function (on package-dired)
> > Cannot open doc string file
> > "/Users/helehvas/.emacs.d/elpa/project-0.5.2/project.elc"
>
> A fix for bugs when reloading packages on Macos was fixed today in Emacs
> 28, and that may or may not fix this problem, too.  Would it be possible
> for you to check with Emacs 28?
>
> --
> (domestic pets only, the antidote for overdose, milk.)
>    bloggy blog: http://lars.ingebrigtsen.no
>