assertion failed: mailbox.c: 2180: !message_guid_isnull(&record->guid)

[steffo76 at gmx.de]

Hi there,

I have a problem which turned up under cyrus-imapd 2.4.16: a certain user can't save messages in his drafts folder. I turned on telemetry logging for this user and the dialogue ends with 

BYE Fatal error: Internal error: assertion failed: mailbox.c: 2180: !message_guid_isnull(&record->guid)

The message ends up in filesystem though and can be made accessible by running reconstruct. Any hints ?

This is the whole log:

---------- asdf Tue Nov 20 15:56:00 2012

<1353423360<2<1353423360< ENABLE QRESYNC^M
>1353423360>* ENABLED CONDSTORE QRESYNC^M
2 OK Completed^M
<1353423360<3<1353423361< APPEND "INBOX.Drafts" (\draft \seen) ~{328+}^M
Date: Tue, 20 Nov 2012 15:55:53 +0100^M
Message-ID: <20121120155553.Horde.HWL-kH1hhPPaJ8yTeasO5Q2 at 192.168.0.1>^M
From: Fdsa Asdf <fdsa.asdf at testdomain.xyyz>^M
X-IMP-Draft: Yes^M
Content-Type: text/plain; charset=UTF-8; format=flowed; DelSp=Yes^M
MIME-Version: 1.0^M
Content-Disposition: inline^M
^M
^M
asdf^M
asdf^M
asdfasdf^M
^M
^M
>1353423361>* BYE Fatal error: Internal error: assertion failed: mailbox.c: 2180: !message_guid_isnull(&record->guid)^M

Regards
Stephan