bug#5767: 23.1; nnimap does not store flags on read-only mailboxes

[Julien Danjou]

I'm using Gnus with nnimap.

I've a mailbox a bit special. It is public and shared among several users.
Therefore it is read-only. But flags can be set. The IMAP server is Dovecot.

This is announced like this:

. SELECT public.Salaries
* FLAGS (\Answered \Flagged \Deleted \Seen \Draft)
* OK [PERMANENTFLAGS ()] Read-only mailbox.
* 363 EXISTS
* 0 RECENT
* OK [UNSEEN 337] First unseen.
* OK [UIDVALIDITY 1254327225] UIDs valid
* OK [UIDNEXT 905] Predicted next UID
* OK [HIGHESTMODSEQ 1] Highest
. OK [READ-ONLY] Select completed.

When a mail in that mailbox is set as read, Gnus does not set the \Seen
flag on mails, but it should because it actually can.

-- 
Julien Danjou
// ᐰ <julien@danjou.info>   http://julien.danjou.info