The plakar fork command is used to create an exact duplicate of a snapshot with a different snapshot ID.
plakar fork [snapshotID]
Creating a duplicate for snapshot 23:
$ plakar ls
2023-08-10T07:34:34Z 23e3f265 3.0 MB 0s /private/etc
$ plakar fork 23
$ plakar ls
2023-08-10T07:34:34Z 42c70c03 3.0 MB 0s /private/etc
2023-08-10T07:34:34Z 23e3f265 3.0 MB 0s /private/etc