I just had my house painted. The painters took down the exterior lights. When they hooked them back up, the circuit breaker kept tripping when I turned the exterior light switch on. I took the fixture off and found that the ground wire from the fixture had been secured with the wire nut to the black (live) wires. I rewired it the way I had originally wired it (black to black, white to white, and ground to the ground screw) and it will not work. It does not trip the breaker anymore, but it seems as though the light fixture is ruined. Would that ruin the light fixture?