[bug] gnus-start-date-timer problems.

[Colin Rafferty <craffert@ms.com>]

Hi-

I have gnus-single-article-buffer set to nil, and recently upgraded to 
pgnus.

Anyway, I think gnus-start-date-timer is quote cool.  However, it does 
not play well with multiple article buffers.

Here is how to reproduce the problem:

1. Create two frames, side by side, each showing the *Group* buffer.

2. In the first frame, select a group, and open an article.  You will
   see the X-Sent slowing changing correctly.

3. Go to the second frame.  As soon as you leave the first frame, the
   X-Sent stops changing.  This is my first problem, though it has
   nothing to do with gnus-single-article-buffer.

4. Now select a group, and open an article.  You will see the second
   article's X-Sent change correctly.

5. Change focus back to the first frame in the first *Summary* buffer.
   The X-Sent in the second article will stop, and the X-Sent in the
   first article will change to what the second article should have.

The first problem is that `article-update-date-lapsed' is checking
"(get-buffer-window gnus-article-buffer)", when it should probably be
using "(get-buffer-window gnus-article-buffer 'visible)".

The second problem is more problematic.  There are more than one
article buffers, but there is only one gnus-article-buffer.  Maybe
have a list of them, and any daemons that work on articles mapcar the
list.

-- 
Colin