On Sun, Feb 04, 2018 at 09:06:15PM +0000, Alan Third wrote:
> Oddly if you do
>
>     (file-accessible-directory-p "/usr/bin/true")
>
> it works correctly, but then once you run
>
>     (call-process "/usr/bin/true")
>
> file-accessible-directory-p incorrectly returns true on subsequent
> calls. Paul’s commit didn’t make any real changes to
> file-accessible-directory-p so I suspect this problem is older.

In fact, I can replicate it on Emacs 25, so it’s an old bug.