Border case in filename completion

[Gerd Moellmann]

In GNU Emacs 21.3.50.8 (i386-unknown-freebsd4.8, X toolkit, Xaw3d scroll bars)
 of 2003-09-01 

Say I want to find-file sprof.lisp in a directory ~/foo containing
the three files

    sprof.lisp
    sprof2.lisp
    sprof.example

Now,

    C-x C-f ~/foo/sprof. TAB

What happens is that point is placed in the minibuffer in front of the
period.  Another TAB shows all three files above in the *Completions*
buffer, which I guess is explainable by a change mentioned in NEWS,
that only the part before point is used for completion.  Moving point
to the end of the minibuffer again, after the period, and ? again
puts point in front of the period and displays all three files in
*Completions*.