An odd problem with Mhonarc v2.2.0

Morning...

        I'm running Mhonarc v2.2.0 and have an odd problem, which I'm not
sure if is a bug in the software, or a misunderstanding on my part.

        One of my 'archives' is growing without bounds.  

        The actually file that it gets the archive from has ~976 messages
in it, but the mhonarc -outdir currently has: 6600 msg* files in it.

        I'm using the following to create the archive:

        mhonarc -add -rcfile ../.resource -outdir 1997-01 \
                archive/pgsql-hackers.199701

        So it could be that I'm just missing a flag?

        I just wiped out the 1997-01 directory, and am recreating it,
using the above command: 

pgsql> ls 1997-01 | wc -l
     964

        Trying it a second time, using exactly the same command and the
same archive file, I should get 'No new messages', correct?

Writing database ...
1902 messages
pgsql> !ls
ls 1997-01 | wc -l
    1924

        Bug, or missing flag?

Thanks...       

Marc G. Fournier                                
Systems Administrator @ hub.org 
primary: scrappy(_at_)hub(_dot_)org           secondary: 
scrappy(_at_){freebsd|postgresql}.org