Replication 'noreplicate' field usage

I've set up replication as per the wiki under 2.3.3 and in my SQL user query I am returning a 'noreplicate' field, this is a boolean and returns true for all users at the moment. However when I do "doveadm replicator status '*'" it lists all users in my database suggesting it is trying to sync all users regardless of the noreplicate field.

user_query = SELECT home, uid, gid, noreplicate FROM users WHERE address 
= '%u'

It seems that the noreplicate field is being ignored, am I using it correctly?