AI the driver doesn't keep the Tank position.
https://youtu.be/d2jsDNt1lLs
If AI receives traveling coordinates, ever, it will always move to these coordinates even if you have changed tasks for AI. It can't be cancelled, it is possible to appoint other traveling coordinates only.
When you have changed the driver's chair, have executed moving of the tank to other coordinates, sit down in a chair of the shooter or commander - AI the driver will begin the movement of the tank in the last traveling point. Any operations or teams of movement of the tank don't change the aspiration of AI to move the tank to the last traveling point when AI receives a role of the driver.
For AI there is no dumping of the appointed traveling point.