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

[Juri Linkov]

> The dired revert is a separate problem unrelated to this bug report.
> But still we need to remove this ad-hoc condition:
>
>             (when (and (markerp wc-point)
>                        (marker-buffer wc-point)
>                        ;; FIXME: After dired-revert, marker relocates to 1.
>                        ;; window-configuration restores point to global point
>                        ;; in this dired buffer, not to its window point,
>                        ;; but this is slightly better than 1.
>                        ;; Maybe better to save dired-filename in each window?
>                        (not (eq 1 (marker-position wc-point))))
>               (goto-char wc-point))
>
> Checking for (not (eq 1 (marker-position wc-point)))
> is the wrong thing to do because it also affects non-dired buffers.
>
> But I have no idea how to handle dired revert that moves the marker
> to the top of the buffer.  Adding special-handling for dired here
> also doesn't look right.
>
> Maybe it's possible to mark the marker as invalidated after reverting?
> Then could check for the invalidated status here.

Actually the problem is somewhere else because after dired revert
point is relocated to the top of the buffer even in non-selected windows
in window-configuration.  So trying to manually preserve point
in the selected window is not of much help.  Therefore I just
removed the special-handling of dired revert in master.