Can syncrepl do both database and acl?

In a simple provider-consumer setup, I added syncprov to both config (config, cn=config) and the database (mdb,cn=config) on the provider, added syncrepl respectively on the consumer. The initial replication seems working, entries added to provider will show up at consumer until an acl rule added into provider. When I check the consumer, the syncrepl directive in the (mdb, cn=config) is removed. I guess it's trying to replicate producer's config since there is no syncrel on the provider (I also see syncprov added to consumer). This defeats the purpose of database replication. Is this expected behavior? Did I miss anything? (In master-master setup, every server is replicating everything for each other.)

Thanks, Xuhua