samba - Apr 2014 - sites and DRS replication

Hello,
I have 2 domain servers:
1. sernet samba 4.1.6
2. w2k8

If I join w2k8 to samba domain (both in site Default-First-Site-Name) 
replications works fine.
If I create new site TEST a then join w2k8 to domain (to site TEST) 
replication doesnt work.

Is it supported by samba?

Thanks
Michal Boruvka