In my Audis at least, the child safety is disabled together with the locks opening within a few milliseconds of the airbag control unit sending a crash signal across the CAN. That message is sent immediately when the decision to open at least one airbag has been made and therefore will reach all components while the crash hasn’t even had time to finish, so all wires and stuff is most likely still in place

Apart from that, the doors have an emergency mechanical release that is “just pull a bit harder and further on the handle”. Which is what you’d do anyway.