How do you roll back a change worker type transaction?

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How do you roll back a change worker type transaction?

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Hi experts,
Has anyone figured out how to roll back a change worker type transaction?
As stated in the documentation: "You can also roll back the data that you changed while changing the worker type."

https://docs.oracle.com/en/cloud/saas/readiness/hcm/26b/hure-26b/26B-hr-wn-f43513.htm#Steps-to-enable-and-configure

One more point: Is there any reason why it creates duplicate historical records?

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26B

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