immutability guarantees provided by versioning. When existing object replication is enabled, these objects will be replicated as `null` versions to the remote targets provided they are not present on the target or if `null` version of object on source is newer than the `null` version of object on target.

If the remote site is fully lost and objects previously replicated need to be re-synced, the `mc replicate resync start` command with optional flag of `--older-than` needs to be used to trigger...