Comment 23 for bug 1468871

re-reading Alex's comment in the prior WIP branch:

# NOTE: The following functions are only used to support upgrades from a
# previous version of this charm that partitioned knownhosts/authorized_keys
# according to remote_service (essentially, the nova-compute application name
# that was related to this nova-cloug-controller instance). The current
# behaviour is to merge all of the remote_services so that the
# knownhosts/authorized_keys are shared among all nova-compute relations. See
# bug: #1468871

Does this mean that the issue we're solving for could be fixed just by removing and re-relating all the nova-compute applications to nova-cloud-controller to cross-multiply keys for legacy deployments? Do new deployments not suffer from this segregated key sharing if I'm using 21.04 n-c-c and nova-compute charms?