Just FYI:

Ted Zlatanov <tzz@lifelogs.com> writes:
> NW> (setq gnus-registry-max-entries          20000
> NW>       gnus-registry-split-strategy       nil
> NW>       gnus-registry-use-long-group-names t
> NW>       guns-registry-track-extra          '(sender subject))

First, note my clever spelling of "gnus" in
"guns-registry-track-extra". That was fun to find.

> You can set `gnus-verbose' to 9 and endure the noise until you catch the
> problem.  Sorry I don't have a better way.

Yes, thanks. I finally got around to tracking this down. I added a new
split rule that *never* worked and that made it a lot easier to debug.

In this case, it turned out that gnus-registry-split-fancy-with-parent
was splitting on subject and the subject was generic enough to have
already been dropped in my "misc" bucket. Consequently, my new rule
never fired.

I expect that explains my other incorrect splits as well.

I've removed "subject" from track-extra for the time being and I'll
see how that goes. On the one hand, it was sometimes handy to have
subject in the list, but I think the false splits probably outweigh
that convenience.

                                        Be seeing you,
                                          norm

-- 
Norman Walsh <ndw@nwalsh.com> | There is nothing new under the sun but
http://nwalsh.com/            | there are lots of old things we don't
                              | know.--Ambrose Bierce