bug#63676: cancelling editable dired causes UI problems with dired

[Drew Adams]

Hi Thierry,

> > With Dired+ you can create a Dired buffer for any
> > arbitrary list of files & dirs, even interactively,
> > in several ways.  Such a buffer isn't connected
> > with any particular directory listings (whether by
> > `ls' or ls-lisp).
> >
> > E.g., commands `diredp-marked(-other-window)' do
> > it for the marked files & dirs in a Dired buffer.
> > (`C-M-*' is bound to `diredp-marked-other-window'.)
> >
> > You can then use WDired on such buffer, to make any
> > changes you like.
> >
> > Dired+ hasn't tried to fix any WDired problems, so
> > some WDired problems that you pointed to might
> > still be problematic with Dired+; dunno.
> 
> Should work fine with emacs-29+ and broken before (needed a patched
> Wdired).

What is it that should work fine with 29+ but was broken before?