bug#61857: 30.0.50; fido-mode breaks org-goto-location

[Eli Zaretskii]

> From: Spencer Baugh <sbaugh@janestreet.com>
> Date: Mon, 27 Feb 2023 16:16:25 -0500
> 
> 
> 1. Create an org-mode buffer containing:
> * foo
> ** bar
> 2. C-u C-c C-j (to run org-goto-location)
> 3. Completion of the full "foo/bar/" path works;
>    i.e. one can input f TAB b TAB to input the path.
> 4. M-x fido-mode
> 5. C-u C-c C-j (to run org-goto-location)
> 6. Only "foo/" can be completed; once "foo/" is entered or completed,
>   "bar/" cannot be subsequently completed.

Is it definitely a problem with fido-mode, not with org-goto-location?