[Orgmode] Problem with org-gnus-follow-link

[Ulf Stegemann]

(Org as of 2008-12-08, Gnus/5.110009 (No Gnus v0.9), XEmacs/21.4.21 (linux))

Hi,

I've encountered a problem with `org-gnus-follow-link' which sometimes
fails to fetch the appropriate article in Gnus. This does not happen
when a buffer is visiting the group the link points to.

After a bit of investigation I found out that the problem is
`gnus-group-read-group' which is called by `org-gnus-follow-link'.
`gnus-group-read-group' does not return an article but nil if the last
message of the group has been deleted (this is re-producable here).
Inserting a new article into the group (e.g. by moving an article from
that group into the same group again) solves the problem.

I'm not quite sure how to address the problem or the other way round: is
this a bug in `gnus-group-read-group' that should never return nil if
the first argument is 1 and there's at least one article in the group or
is it a bug in `org-gnus-follow-link' that counts on
`gnus-group-read-group' returning an article.

Ulf