bug#68235: 29.1.90; Switching tabs stops following process output in selected window

[Juri Linkov]

> OK.  Please try the attached patch.  With something like
>
> (let ((buffer (find-file-noselect "~/foo.el")))
>   (with-current-buffer buffer
>     (find-alternate-file "~/bar.el")
>     (message "%s..%s" (buffer-last-name buffer) (buffer-file-name buffer))))
>
> it should work fine thus fixing the image mode problem.  With
>
> (let ((buffer (find-file-noselect "~/foo/bar.el")))
>   (with-current-buffer buffer
>     (find-alternate-file "~/bar/bar.el")
>     (message "%s..%s" (buffer-last-name buffer) (buffer-file-name buffer))))
>
> you can still use the old file name to restore the buffer.

Thanks, I confirm this completely fixes the original test case.