bug#704: 23.0.60; buggy file name completion in *shell* buffer

[Chong Yidong]

> When I type in *shell* buffer 'ls -l /usr/ TAB' and pick 'bin/' from  
> the *Completions* window, the text in *shell* I had already is  
> substituted to 'bin/'. The *Completions* window shows:
>
> Click <mouse-2> on a completion to select it.
> In this buffer, type RET to select the completion near
> point.
            
> Possible completions are:
> ../           ./          X11-vorher/  X11/         X11R6/           
> X11R7.1/
> X11R7.2/      bin/        include/     lib/         libexec/         
> local/
> sbin/         share/      standalone/  texbin

I don't see the problem on latest CVS.  Does it still happen for you?