bug#67688: 30.0.50; ffap prepends buffers default-directory to guessed file name in case of tramp's file name syntax

[Stephen Berman]

On Thu, 07 Dec 2023 14:45:34 +0100 Gregor Zattler via "Bug reports for GNU 
Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org> wrote:

> Dear Emacs developers, following this recipe (in
> some Gnu/Linux shell):
>
> $ cd /tmp
> tmp$ emacs -Q -nw
> # type /ssh:user@server:/home/test
> # type M-x ffap RET
>
> the proposed file name in minibuffer then is:
> /tmp/ssh:user@server:/home/test
> instead of
> /ssh:user@server:/home/test
>
> Therefore it's not possible to just hit RET in order
> to open that file.  But that would be nice.

I see the same thing if the cursor is anywhere in that line after the
first `/', but if the cursor is on the first `/', then for me `M-x ffap
RET' does enter "/ssh:user@server:/home/test" into the minibuffer.

Steve Berman