These listings have been using out-of-date overrides file and Packages file information, because the cron job to update my local copy wasn't working.
I think I've fixed that now, and the next summary should be correct. Please let me know of any further problems. Thanks, Ian. (BTW: I've just caught up with my personal mail here; I still have about 100 debian-devel messages marked to save or reply to, which I won't get around to today. Please bear with me ...)