dovecot - May 2009 - index_mailbox_set_recent_uid error on 1.1.14

Seen this error a few times from dovecot-1.1.14, Mac OS X, 64-bit  
Intel.  Pretty sure NFS was not used.

Panic: IMAP(user): file index-sync.c: line 39  
(index_mailbox_set_recent_uid): assertion failed:  
seq_range_exists(&ibox->recent_flags, uid)

The backtrace is:

0   libSystem.B.dylib             	0x00007fff85025166 __kill + 10
1   libSystem.B.dylib             	0x00007fff850a80e0 abort + 83
2   imap                          	0x0000000100069f3e  
default_fatal_finish + 70
3   imap                          	0x0000000100069f8c  
i_syslog_fatal_handler + 0
4   imap                          	0x00000001000696eb i_info + 0
5   imap                          	0x000000010003b86b  
index_mailbox_set_recent_uid + 74
6   imap                          	0x000000010003b8cb  
index_mailbox_set_recent_seq + 58
7   imap                          	0x0000000100018f5d  
maildir_sync_index + 2163
8   imap                          	0x0000000100017ba5  
maildir_sync_context + 662
9   imap                          	0x0000000100017d8e  
maildir_storage_sync_init + 104
10  imap                          	0x000000010000c037 imap_sync_init +  
132
11  imap                          	0x000000010000c289 cmd_sync_delayed  
+ 477
12  imap                          	0x0000000100006ae8  
client_handle_input + 409
13  imap                          	0x0000000100006bc2 client_input + 148
14  imap                          	0x0000000100070f83  
io_loop_handler_run + 272
15  imap                          	0x0000000100070348 io_loop_run + 55
16  imap                          	0x000000010000db95 main + 1635
17  imap                          	0x0000000100001010 start + 52

On Mon, 2009-05-04 at 12:21 -0500, Mike Abbott wrote:
> Seen this error a few times from dovecot-1.1.14, Mac OS X, 64-bit  
> Intel.  Pretty sure NFS was not used.
> 
> Panic: IMAP(user): file index-sync.c: line 39  
> (index_mailbox_set_recent_uid): assertion failed:  
> seq_range_exists(&ibox->recent_flags, uid)
Did it log anything else? I know this can happen in some error
conditions that I haven't bothered to look into yet.

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>> Panic: IMAP(user): file index-sync.c: line 39  
>> (index_mailbox_set_recent_uid): assertion failed:  
>> seq_range_exists(&ibox->recent_flags, uid)
>
> Did it log anything else?
Trying to find out.....