single instance store and replication

[Jerome Nenert]

Hello,

I'm using Cyrus replication. After several tests, it seems that the 
single instance store facility is not replicated. I mean, the same 
message sent to several recipient is stored once on the master, but 
stored several times on the slave.
Is there a special thing to do to activate single instance store 
replication or it just doesn't exist yet ?

Regards.
JN.