bug#39149: 27.0.50; describe-buffer-bindings is calling :filter function in wrong buffer

[yyoncho]

I tested with emacs27.1

emacs27.1 -q 

Then pasted the code in scratch buffer, evaluated, and reproduced the described behaviour.

Thanks,

Ivan

On Fri, Oct 30, 2020 at 4:23 PM Lars Ingebrigtsen <larsi@gnus.org> wrote:

yyoncho <yyoncho@gmail.com> writes:

> To reproduce (eval in scratch buffer)
> (define-key global-map (kbd "C-c C-l r")
>   `(menu-item "2" switch-to-buffer
>               :filter ,(lambda (cmd)
>                          (print (format "Called in %s" (current-buffer)))
>                          cmd)))
> (with-temp-buffer
>   (with-output-to-string
>     (describe-buffer-bindings (get-buffer "*scratch*") [3 12] t)))
>
> This outputs:
>
> \"Called in  *temp*\"

I tried this recipe, but I'm not getting the :filter function called at
all.  Do you have a recipe, starting from "emacs -Q", that reproduces
this bug?

And your report didn't include the data about the version generated by
report-emacs-bug, so it's hard to guess whether bug is only on some
specific system.

--
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no