doveadm/dsync/imapc loose folder subscriptions

[Timo Sirainen]

On 01/08/2016 01:34 PM, Peer Heinlein wrote:
> 
> As I already wrote some days ago we're actually running a huge migration
> using doveadm/dsync-backup/imapc:
> 
> doveadm -o imapc_user="$UNAME1"  -o imapc_password="$PWORD1"  -o
> imapc_host=$SERVER1 -o pop3c_user="$UNAME1" -o pop3c_password="$PWORD1"
> -o pop3c_host=$SERVER1 -D -v backup -R -u "$UNAME2" imapc:
> 
> We just noticed that doveadm looses changes in folder subscriptions if a
> folder is copied again.
> 
> a) Copy a mdbox-home of a user  (using doveadm backup...)
> 
> b) Change his subscriptions on the source-side OR change his subscripts
> on the destination-side OR delete his subscriptions-file.
> 
> c) Copy that mdbox-home from that user again (using doveadm backup...)
> 
> doveadm will copy & merge his mails, but he does NOT check for changes
> in folder subscriptions. As you can see in the attached logs, doveadm
> nitices changes in subscriptions:

This should fix it:
https://github.com/dovecot/core/commit/9d7f23fa2334e037c09d8cf90cc80b3c89ecea27