Clarification on post-repair failover

[kevinelgregory]

Please clarify the process for re-enabling replication once the primary database has been repaired:

"....Also ensure the database_replica group has the repaired database host if you took it out before doing the HA failover. The easiest way to enable the replication is to re-run the failover playbook."

There doesn't appear to be any previous mention of removing the failed host from the replica group prior to running the first failover command. Should it be removed? Or, is this just mentioned in case someone has done so at some point?