bug#33458: 27.0.50; dired loses position when reverted from outside place

[martin rudalics]

> I think we should run a hook when a buffer appears in the window,
> either by e.g. 'C-x <left>' (previous-buffer) or by 'window-state-put',
> then a buffer-local hook in Dired will move its point to the right file.

The problem with 'dired' is that we have to make any amendments at the
time the buffer is reverted.  It's already too late when switching to
the buffer afterwards.

The only thing we can do at the time of switching to a buffer is to go
to the buffer's point (which should work when the buffer was displayed
only in one window before).

martin