Animal Spawning strange in custom biomes

Status
Fixed
Issue description

in 1.7.8 after a minute or two animals just keep spawning until there are huge amounts of them in a custom biome if you select only animals as the entities to spawn in the biome

see attached image to see bug in action

animal spawn bug

Issue comments

Well if you selected cows, chicken pigs, and sheep, this is exactly what happens if you select these mobs to spawn there so I am closing this as works as designed. Please reply if you did not mean this

@klemen - you need to code something to limit the number they spawn in... it lags the game like crazy after hundreds of them show up...