Throttle not working for front seat in multicrew when control responsibility set to instructor

[mhe]

As the title says, even if control is assigned to the front seater via the control handover button, the throttle will always snap back immediately to what is set in the back seat in multicrew if control responsibility is set to instructor in the Mission Editor.

However, when alt-tabbing out on the backseat, front seat throttle starts working (provided you handed over controls before alt-tabbing out)! That is of course not a viable workaround, but I hope it somehow helps with debugging.