Oort, agent - fetching read articles

[Paul Stodghill <stodghil@cs.cornell.edu>]

I've noticed that the agent in Oort gnus does not fetch all of the
articles that I expect it to, and it seems to be that the articles that
it doesn't fetch have been read before I try to fetch them.

The newsgroups in question are in a category whose predicate is "true".
I am not explicitly marking articles for downloading. I'm just doing a
"J s" in the *Group* buffer.

Is the agent supposed to fetch articles that have already been read? Is
not, there some way to get it to do so?

Thanks.