100%Please,
From the report:
If a flight crewmember falls on a sidestick, or a mechanical failure leads to a jammed stick (there is no associate ECAM caution), the "failed" sidestick order is added to the "non-failed" sidestick order.
In this case, the other not affected flight crewmember must press the sidestick takeover pushbutton for at least 40s, in order to deactivate the "failed" sidestick.