This happened to me as well. I accidentally loaded my snapshot enabled world in 1.8.8. When I loaded it back up with the appropriate snapshot (15w51b) the skeleton spawner was a pig spawner.
Seed: 784643794644085780Coords: (-201, 25, 602)
Amanda Hayes
This happened to me as well. I accidentally loaded my snapshot enabled world in 1.8.8. When I loaded it back up with the appropriate snapshot (15w51b) the skeleton spawner was a pig spawner.
Seed: 784643794644085780
Coords: (-201, 25, 602)