It works. Thanks.

Dmitry Gutov <dmitry@gutov.dev> 于2024年12月3日周二 10:15写道：

> On 02/12/2024 07:15, Chu Maeda wrote:
> >
> > Of course, I created such a project on github, you could clone it by
> > command:
> >
> > git clone --recurse-submodules https://github.com/chu-mirror/A.git
> > <https://github.com/chu-mirror/A.git>
> >
> > The problem is clear when you open the file A/B/C/README.md, and run
> > command project-find-file(C-x p f by default)
>
> Thanks!
>
> It seems we should switch from checking for modules once to doing it in
> a loop. Try this out:
>
> diff --git a/lisp/progmodes/project.el b/lisp/progmodes/project.el
> index cf1c94a6d20..3cc063a5d99 100644
> --- a/lisp/progmodes/project.el
> +++ b/lisp/progmodes/project.el
> @@ -591,7 +591,7 @@ project-try-vc--search
>                        last-matches))
>              vc-handled-backends))
>            project)
> -    (when (and
> +    (while (and
>              (eq backend 'Git)
>              (project--vc-merge-submodules-p root)
>              (project--submodule-p root))
>
> Note you might need to restart Emacs after applying the patch, because
> the directory->project relation is currently cached until restart.
>