Is detaildata automatically transferred at synchronization?

We are working on a new MI 2.1 project using the SyncBO technology. We are testing a Timed 2-way SyncBO. What I can't find in the documentation is the way the Synchonization between MI-Server (R-DB) and MI-Client is performed.

What I expected was that only the list was transferred automatically to the the client, and the Client explicitly needed to ask for the GetDetail function.

It seems though that at synchonization both GetList as GetDetail are performed. Is there someone who can confirm this.

Thanks,

Edwin.