bug#50431: revert-buffer doesn't preserve read-onlyness

[Lars Ingebrigtsen]

Juri Linkov <juri@linkov.net> writes:

> I confirm that now the read-only status is restored,
> but reverting loses view-mode:
>
>   C-h C-t  -- note "View" on the mode-line;
>   C-x x g  -- "View" is lost.

Hm, yes.  Reverting a buffer disables all the minor modes?