Dovecot + KMail + Bogofilter

[Anne Wilson]

I seem to have a problem with my imap Inbox.  If bogofilter has given a false 
positive I would expect to run the Mark as Not Spam filter (I run from a 
toolbar icon) then move it to Inbox.

At the moment, on this box (Mandriva Spring) moving it causes it to disappear, 
but it can be recovered with Edit > Undo.

If I attempt to copy it to Inbox instead, the same thing appears to happen, 
but Edit > Undo results in two copies in my local wastebin.

I can copy or move to another folder.

I suspect that this is a bogofilter problem.  I see the Inbox message count 
increase, then immediately decrease again.  It seems to be ignoring the fact 
that I had marked it Not Spam, and instantly marks it as Spam again.  If the 
appropriate place for the message is the Inbox, I'm stymied.

I don't recall seeing this behaviour before, so it may be confined to the 
version supplied with Mandriva Spring, or indeed to the package supplied.

Is there any way I can tackle this?

If it is likely to be a bogofilter bug, where should it be reported?

Thanks

Anne