[Dovecot] THREAD X-REFERENCES2 index bug?

[Timo Sirainen]

On Sat, 2009-03-21 at 15:55 +0000, Nathan Kinkade wrote:
> $ export MAIL=maildir:~/Maildir:INBOX=~/Maildir/INBOX
> $ /usr/lib/dovecot/imap
> <snip>
> 1 SELECT "INBOX"
> <snip>
> 2 THREAD X-REFERENCES2 UTF-8 ALL
> * THREAD (0)(2)(1 3)(4)
> 2 OK Thread completed.

Could you send me the dovecot.index* files? Would make it easier for me
to reproduce this bug. dovecot.index.cache file is the only one that
might contain something sensitive.

> Is this the normal and expected behavior of X-REFERENCES2 that the client
> just needs to take into account, or is the reference to thread index (0) an
> error?

It's a bug.
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