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

[v88m]

On Fri, Nov 30 2018, Juri Linkov wrote:

> Maybe for dired store meta-information such as dired-filename
> in window parameters.  Then when a dired buffer is restored in a window,
> and dired-revert moved point-marker to the beginning of the dired buffer,
> move point to the file from the window parameter.

What if file referenced by such `dired-filename' was deleted? It is
desirable to move to next or prev. filename but not to stay in the
beginning of the dired buffer.

-- 
WBR, Yuri