[MC-216697] Having 'min_y' set to lower than -64 causes either a crash or the world not to behave correctly if the height limit wasn't modified

Just import it to a world. You'll see. Crashes instantly.

Info

If you put something much lower (for example -480), it no longer crashes, but doesn't generate anything at all apart from amethyst geodes.

Stack trace

21w08b: crash-2021-02-28_16.43.53-server.txt

Description: Exception initializing level

java.lang.ArrayIndexOutOfBoundsException: -1
	at ckf.b(SourceFile:62)
	at cnl.a(SourceFile:444)
	at cnl.b(SourceFile:370)
	at java.util.concurrent.CompletableFuture$AsyncSupply.run(Unknown Source)
	at java.util.concurrent.CompletableFuture$AsyncSupply.exec(Unknown Source)
	at java.util.concurrent.ForkJoinTask.doExec(Unknown Source)
	at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(Unknown Source)
	at java.util.concurrent.ForkJoinPool.runWorker(Unknown Source)
	at java.util.concurrent.ForkJoinWorkerThread.run(Unknown Source)