What's wrong with my spam.el settings now?

[bkhl@elektrubadur.se (Björn Lindström)]

After upgrading to No Gnus (CVS of 20050719) my spam group is behaving
differently. Spam is split to nnml:spam properly, and if I enter that
group and leave, the new spam messages will still have it spam mark, and
when I leave again, it will be processed again.

What has changed that I need to compensate for?

Here are the relevant parts of my configuration:

;; Spam
(require 'spam)
(spam-initialize)

;; Prevent multiple registration of articles.
(require 'gnus-registry)
(gnus-registry-initialize)
(setq spam-log-to-registry t)

;; Use bogofilter for spam processing.
(setq spam-use-bogofilter t)

;; Put incoming spam in "spam".
(setq spam-split-group "spam")

;; Set spam and ham groups.
(setq gnus-spam-newsgroup-contents
      '(("^nnml:spam" gnus-group-spam-classification-spam)
        ("^nnml:.*" gnus-group-spam-classification-ham)))

;; Train the filter.
(setq spam-process-ham-in-spam-groups t
      gnus-spam-process-newsgroups
      '(("^nntp\\+news\\.gmane\\.org:"
         ((spam spam-use-gmane)))
        ("^nnml:.*"
         ((spam spam-use-bogofilter)))))

;; Move processed spam.
(setq spam-move-spam-nonspam-groups-only t)
(setq spam-mark-only-unseen-as-spam t)
(setq gnus-spam-process-destinations
      '(("^nnml:.*" "nnml:spam")))

;; Move processed ham.
(setq spam-mark-ham-unread-before-move-from-spam-group t)
(setq gnus-ham-process-destinations
      '(("^nnml:spam" "nnml:reclassify")))

;; Splitting
(setq '(|
         (: spam-split)
         ...))