A staff member was transferred to another department and his previous contract was canceled and a new one was created

However, after the new contract was created, the "First Contract Date" was updated in the old canceled contract

Is this normal? Is it possible to revert the old date in the old contract? Is it possible to set the old "First Contract Date" in the new contract since it is the new date and not the date of the first contract?

Screenshot: https://prnt.sc/0tAXRAKzwevh

Odoo14