The patch fixes it for me too. Thanks!

On Tue, Feb 15, 2022 at 8:39 AM Michael Albinus <michael.albinus@gmx.de>
wrote:

> Dan McCarthy <daniel.c.mccarthy@gmail.com> writes:
>
> Hi Dan,
>
> > Create a remote shell-mode buffer with C-u M-x shell, using bash as
> > the
> > remote shell. pushd into another directory, then popd
> > back. default-directory and shell-dirstack still have the other
> > directory even though the popd took effect in the remote process.
> >
> > The problem seems to be that shell-prefixed-directory-name returns a
> > string like
> > "/ssh:dan@solstice:/ssh:dan@solstice:/home/dan/Documents/",
> > doubling the remote prefix.
> >
> > Local shell-mode buffers do not have the problem.
>
> Thanks for the bug report, I could reproduce it locally. The appended
> patch fixes this for me, could you please check?
>
> Eli, it is a very simple patch. Any chance to commit it to the emacs-28
> branch? Otherwise, I would commit it to master, but we need a marker to
> merge it back to the emacs-28 branch after the Emacs 28.1 release.
>
> Best regards, Michael.
>
>