[Dovecot] patch for UID 0 problem

[Kai Arif]

Hi all,

attached you'll find a patch for cmd-thread.c which addresses a problem with certain clients in
conjunction with the use of the UID THREAD REFS command:

TAG5 UID THREAD REFS us-ascii SINCE 14-May-2011
* THREAD
(0)(246)(247)(248)(249)(250)(252)(253)(254)(255)(256)(257)(258)(259)(260)(261)(262)(263)(264)(265)(266)(267)(268)
TAG5 OK Thread completed.

The first UID delivered (0) is invalid, some clients - @mail for instance - then try to fetch the
invalid UID 0 subsequently and run into problems.

The patch actually disables the return of (0) and seems to work for us. Please review and - if OK -
incorporate it in the next version.

Best Regards
Kai


-- 
Kai Arif - System Administrator
Inter.net Germany GmbH
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