publish_objects(+Store, +Hashes)[private]
Make the objects we just stored globally known. These are added to the Redis stream gitty:replicate and received by replicate/1 below.

This realized eager replication as opposed to the above code (redis_replicate_get/2) which performs lazy replication. Eager replication ensure the object is on multiple places in the event that the node on which it was saved dies shortly after.

Note that we also receive the object we just saved. That is unavoidable in a network where all nodes are equal.