bug#56532: 27.2; Ido C-f in read-file-name inserts twice the initial name

[Tobias Bora]

Yes, even if it's not supposed to work it would be cool to make it work 
as the current behavior seems to have not much logic.

Also, I can't find a way to change the folder without changing the file 
name… does Ido provide a way to change the folder without changing the 
file name? I tried to cut with Ctrl-k to paste it later, but it does not 
work, C-k just removes the text but does not copy it.

Thanks!

On 14/07/2022 20:23, Eli Zaretskii wrote:
> > From: Lars Ingebrigtsen <larsi@gnus.org>
> > Cc: Tobias Bora <tobias.bora@gmail.com>,  56532@debbugs.gnu.org
> > Date: Thu, 14 Jul 2022 20:19:41 +0200
> >
> > Eli Zaretskii <eliz@gnu.org> writes:
> >
> > > > I can easily reproduce it in emacs -Q yes by simply evaluating the
> > > > following config:
> > > >
> > > > (setq ido-everywhere t)
> > > > (ido-mode)
> > > > ;; Stop changing directory when openning a file that does not exist!
> > > > (setq ido-auto-merge-work-directories-length -1)
> > > >
> > > > (read-file-name  "Picture name:" "/tmp/" nil nil "defaultname.png")
> > Thanks; with that I can reproduce the problem.
> >
> > > It looks like you aren't supposed to do that under Ido.  See
> > > ido-magic-forward-char.
> > It may not be supposed to work, but it'd be logical if it did, I think?
> > But I'm not that familiar with how ido does fallbacks (it seems to
> > involve some strange, brittle magic), so I don't know whether it's
> > possible or not.
> I think it relies on how the candidates are displayed at that point,
> which is quite different from what read-file-name does.  Yes, that's
> brittle.