Agent not fetching headers in some groups

[Jaakko Kangasharju <ashar@iki.fi>]

I have had a problem with agent not fetching headers automatically for
some groups for some time now.  It is not more than a minor annoyance,
but it would be nice to fix it somehow.

The problem is that when running 'J s' right after starting Gnus, it
skips some groups, i.e. does not download headers or articles.  But if
I enter these groups in plugged mode, so that it fetches the headers,
then after that 'J s' fetches the articles for those groups also.  I
have checked to the limit of my abilities the various files that the
agent generates and I cannot see anything different compared to
normally working groups.

If I run gnus-agent-regenerate in unplugged mode and right after press
'g', the article counts of these groups are all screwy, as if Gnus
thought all the articles in these groups are unread.  And entering any
of these groups right after (still unplugged) shows a summary buffer
with the indicated number of "Undownloaded article"s.

-- 
Jaakko Kangasharju
Warner Books classifies The Far Side as non-fiction.  Creepy.