Re: mailabbrev fix from Jan 2005 now broken in latest CVS

[Richard Stallman <rms@gnu.org>]

    The only major change between now and then was rms's 1.82.2.1 / 1.83
    change, and I'm suspecting that caused it. I confirmed that this
    is the case by installing the previous version (the one right
    before the 1.82.2.1 / 1.83 fix) 1.68.2.10, which does not exhibit
    the problem. 

What exactly IS the problem, at the Lisp level?
It is not use describing it in user level terms
involving a mailer that isn't part of Emacs, because we can't
work on it that way.

    I can reproduce by calling compose-mail and typing an alias to be
    expanded that has a '-' in it - it currently expands when the '-' 
    is typed even if the alias continues after the '-' ('mark-h' for
    instance).

Could you please send me a *precise* test case for this bug?  The test
case should start with `emacs -q', so that your .emacs file does not
affect it, and it should show exactly what text to put in the buffer,
what commands to execute, and how and where to click.  Also please say
exactly what incorrect results you get.