bug#54636: dired fails to update subdirs when files are created/deleted/renamed

[Eli Zaretskii]

> From: Tassilo Horn <tsdh@gnu.org>
> Cc: schwab@linux-m68k.org, 54636@debbugs.gnu.org
> Date: Wed, 30 Mar 2022 16:30:22 +0200
> 
> Here's a patch.  I've created a separate cond-arm for the SUBDIRS case,
> so any callers which are not dired-clean-up-after-deletion (the only one
> setting SUBDIRS) are not affected.

Thanks.

So when will SUBDIRS be non-nil?  dired-clean-up-after-deletion is
called not only when a directory is deleted, I think.

Andreas, could you perhaps also try this patch and see if you have any
problems in your use cases?