bug#33871: 27.0.50; Revert Dired window saved in window configuration

[Juri Linkov]

>> I see that without `goto-char' it moves to the first file name in the
>> selected window.
>
> I see the same here.  In the selected window only, though.
>
>> I don't understand how 'set-window-configuration' restores
>> the selected window's point.
>
> From the buffer's point as established by the revert function of dired
> for buffers not displayed anywhere.

So the revert function doesn't use markers?  Maybe then
set-window-configuration should not use markers too?

>>> To confirm, try with the upper window selected instead.
>>
>> Here is when the upper window is selected, but still it moves to (point-max)
>> in non-selected window:
>>
>> (progn (dired "/tmp")
>>         (dired-other-window "/tmp") (other-window 1)
>>         (let ((w-c (current-window-configuration))
>>           (p-m (point-marker)))
>>       (view-emacs-todo) (delete-other-windows)
>>       (with-current-buffer (get-buffer "tmp")
>>         (revert-buffer))
>>       (set-window-configuration w-c)))
>
> In every non-selected window.  Try with as many windows as you want.
> Only the selected window is handled separately.

A bug?