[Dovecot] Convert plugin question

[Dmitry Filonov]

Timo Sirainen wrote:
> On Mon, 2008-02-04 at 15:00 -0500, Dmitry Filonov wrote:
>
>   
>> Is it possible to change convert plugin, so it would keep old 
>> UIDVALIDITY and UIDNEXT after conversion from mbox to Maildir?
>>     
>
> It would also have to preserve all messages' UIDs. This is something
> that has been in my TODO for a while, but it would require pretty large
> changes so it hasn't been done yet.
>
> Maildir -> dbox migration can preserve UIDs though. :)
>
>   
Why this require large changes? Isn't it only about creating 
dovecot-uidlist on migration?
Anyway, it's your time and I can't ask you to work on my problem first.

What about mbox->dbox migration? Does it preserve UIDs?  

Thanks,

FiL