The agent shows ghost messages (was: spam-stat broken?)

[Niklas Morberg <niklas.morberg@axis.com>]

Ted Zlatanov <tzz@lifelogs.com> writes:

> On Wed, 12 Feb 2003, niklas.morberg@axis.com wrote:
>> 
>> The move routines seem to be working better now, but after
>> some more testing I still see the problem with non-existing
>> messages being displayed in the summary buffer by the agent.
>
> Can you check now? If there is still a problem, something
> is wrong in the interaction between the agent and
> gnus-summary-move-article.

There is a problem, but it has nothing to do with the spam
functionality. I'm pretty sure the problem is with the agent.

Here's a way to repeat it:

1. Start with two unread and undownloaded messages in a
   group.

2. Read the first message.

3. Move the second message to another group with `B m'
   without reading it.

4. Exit the group.

5. Re-enter the same group. The second message shows up in
   the summary buffer, but it not possible to look at it.
   It has not been downloaded and it is not on the server.

This only happens if gnus-agent-mark-unread-after-downloaded
is nil. Setting g-a-m-u-a-d to non-nil makes the problem go
away.

I saw this a lot because I used the spam functionality to do
step 3 above and assumed that that was the culprit.

Thanks for the other fixes in spam.el, though -- they were
certainly not made in vain. I find the spam functionality
much more stable now.

Niklas