5.8.2 nnml article moves not visible in new group

[Chris Shenton <chris@shenton.org>]

This has been buggin' me for a while but I see it's still in 5.8.2 so
I figured I'd ask. 

I use nnml mail back end, with incoming mail being sorted into groups like

        in.chris
        in.work
        list.gnus
        list.beer

When I read an article I want to save, I move it with "B m" into my
saved groups which look like:

        net.mail.qmail
        net.mail.gnus
        net.security
        food.drink.beer
        

But it does not show up in the *Summary net.mail.gnus* types of
displays. 

I can see the article files in the ~/Mail/net/mail/gnus/ dir and such,
and it even appears in the .overview file there. Doing a "g" doesn't
help, nor does quitting gnus or even stopping and restarting emacs.

If I do an nnml-nov-generate-database the moved articles to appear.
This is a bit time consuming with lots of saved mail.

Is there some weird interaction with the ~/Mail/active file? I looked
there and it appeared the troublesome articles were listed as the
first and second numbers next to corresponding group.


Am I doing something wrong? Is there a way to keep things more
consistent? Or a workaround which avoids having to regenerate the nov
database? Other suggestions? 

Thanks.