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I've found that when IMAP4 message is marked as both unseen and
answered, elmo forces it to be marked as seen. The following code
snipped is responsible for it (elmo-imap4.el:942,
elmo-imap4-fetch-callback-1-subr):
(when (and (or (memq 'important flag-list)
(memq 'answered flag-list))
(memq 'unread flag-list))
(setq elmo-imap4-seen-messages
(cons (elmo-message-entity-number entity)
elmo-imap4-seen-messages)))
I suppose that this behavior is wrong. Here is an example of situation
when this behavior complicates usage of wanderlust: I'm reading lots of
corporate mail lists accessed as IMAP4 shared folders. When someone
posts reply to some message in such shared folder, it becomes flagged as
answered and unseen until I read it (after which it becomes marked as
answered only). elmo automatically clears 'unread' flag in this case,
which makes wl-summary-down to skip this message - despite the fact that
I haven't read it. So I need to look for such messages manually, which
is very inconvinient...
I don't know whether the behavior of IMAP4 shared folders described
above is common or not, but I still suggest removing of the fragment of
code cited above. Answered doesn't imply seen - because it could be
unseen by you, but answered by someone else - which is quite common in
case of shared folders.
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Reply to this email directly or view it on GitHub:
https://github.com/wanderlust/wanderlust/issues/30
--
Dave Abrahams
BoostPro Computing
http://www.boostpro.com
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