completion-at-point ans shell-mode -- Possible bug:

[T. V. Raman]

After the latest git update from savannah - lisp/Chagelog starts
with June 12 -- I'm seeing bizarre behavior when hitting tab in
shell-mode buffers.

So I have a ~/emacs directory.

When in my home directory, typing em and tab completes emacs
correctly (runs completion-at-point) but it's also inserting a '
' space character -- which means Icant now continue completing
other subdirs under emacs.

-- 
Best Regards,
--raman