During my time on the F70/100, we were sometimes presented this malfunction by the instructor. As has been mentioned by T7A, there is a cable connecting the reverser buckets to the (IIRC) FCU, and on to the power levers, slamming the affected engines lever to the idle position when the buckets open. Although the engine spooled down to a corresponding thrust setting immediately, it was quite a ride and required some work with the controls to keep the aircraft pointed in a good general direction. As soon as the engine was shut down, though, it did not feel much different from an ordinary engine failure except for the affected power lever still remaining stuck in the flight idle position.
I am not sorry I never had to try this in the real aircraft.