Note that you can just copy the config and keys to a new directory and have a functional repository with the same master key. Then you don’t need a patch; just cp -a $backup/snapshots $backup/data $backup/index $primary/ to copy the data over (or mv the contents of these directories). You’ll have some duplicate data on the next prune since nothing will have been deduplicated with prior backups, but that’s usually not a big deal.
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