[Dovecot] another assert/core with 1.0alpha1

Same as reported before:

Assert:

IMAP(user): file mbox-sync-update.c: line 442 (mbox_sync_update_header_from): assertion failed: (ctx->mail.uid == 0 || ctx->mail.uid_broken || ctx->mail.uid == mail->uid)

Setup: 1.0alpha1 on Solaris 9, built with gcc 4.0.1

Debug output of the core is attached.

Jeff Earickson Colby College