[MC-161705] Server crash on loading a far chunk in the nether

Steps to reproduce

Run the following command using a command block to load the chunk [2147483647, 0].
```
execute in minecraft:the_nether run summon minecraft:wandering_trader 34359738352.0 0.0 0.0
```
The first stack trace is printed. See latest.log for the details.
Run the command block again.
The second stack trace is printed, and then the server crashes.

Crash report

19w38b: crash-2019-09-24_03.47.18-server.txt

Description: Feature placement

java.lang.RuntimeException: We are asking a region for a chunk out of bound | -1 0
	at ww.a(SourceFile:126)
	at bjf.a(SourceFile:101)
	at ww.a(SourceFile:95)
	at cgp.a(SourceFile:66)
	at ccg.a(SourceFile:36)
	at ciz.a(SourceFile:85)
	at java.util.stream.Streams$StreamBuilderImpl.forEachRemaining(Streams.java:419)
	at java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:647)
	at ciz.a(SourceFile:84)
	at cib.a(SourceFile:35)
	at cco.a(SourceFile:20)
	at cco.a(SourceFile:13)
	at ccg.a(SourceFile:36)
	at bjz.a(SourceFile:420)
	at bzb.a(SourceFile:125)
	at bzf.c(SourceFile:84)
	at bzf.a(SourceFile:214)
	at wc.a(SourceFile:544)
	at com.mojang.datafixers.util.Either$Left.map(Either.java:38)
	at wc.a(SourceFile:538)
	at java.util.concurrent.CompletableFuture.uniCompose(CompletableFuture.java:952)
	at java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:926)
	at java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:442)
	at we.b(SourceFile:58)
	at aib.e(SourceFile:83)
	at aib.a(SourceFile:123)
	at aib.run(SourceFile:91)
	at java.util.concurrent.ForkJoinTask$RunnableExecuteAction.exec(ForkJoinTask.java:1402)
	at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)
	at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056)
	at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692)
	at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)