Users which execute omd mv or omd cp expect Checkmk to not only rename the site,
but also migrate the existing configurations created by the Dynamic host management.
Previously, if a host was created by the DCD, then the host property Creation / Locking > Locked
by would not be migrated. Instead the site would show Unknown site (OLD_SITE_ID) and
the host would no longer be updated by the DCD. With this Werk, the migration is done automatically
during the renaming.
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