I had the same issue unfortunately this is the reply from Odoo:

Here is a non-exhaustive list of the deactivated parameters while duplicating the database as below:

all planned actions (e.g., automatic invoicing of subscriptions, mass mailing, etc.), outgoing emails, bank synchronization, payment providers, delivery methods, IAP tokens

You can refer to the below documentation for the neutralized database:

https://www.odoo.com/documentation/17.0/administration/neutralized_database.html

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So in short, there is no such mechanism