[MC-170071] Fatal: Error executing task on Server NullPointerException

The bug

A log message with level FATAL was logged, possibly related to dying in The End. Might be the same as MC-157925 / ~~MC-160359~~.

Game continued running, no visible error in-game.

1.15.2-pre2

Error executing task on Server
java.lang.NullPointerException
	at ww.b(SourceFile:201)
	at wp.a(SourceFile:904)
	at xb.a(SourceFile:479)
	at xv.a(SourceFile:848)
	at qd.a(SourceFile:122)
	at qd$a.a(SourceFile:56)
	at lv.a(SourceFile:21)
	at lv$$Lambda$3253/675643744.run(Unknown Source)
	at tb.run(SourceFile:18)
	at ais.c(SourceFile:144)
	at aiw.c(SourceFile:23)
	at net.minecraft.server.MinecraftServer.b(SourceFile:743)
	at net.minecraft.server.MinecraftServer.c(SourceFile:138)
	at ais.w(SourceFile:118)
	at net.minecraft.server.MinecraftServer.ba(SourceFile:725)
	at net.minecraft.server.MinecraftServer.w(SourceFile:719)
	at ais.c(SourceFile:127)
	at net.minecraft.server.MinecraftServer.v(SourceFile:704)
	at net.minecraft.server.MinecraftServer.run(SourceFile:659)
	at java.lang.Thread.run(Thread.java:745)

1.15.2-pre2, deobfuscated (Mojang names)

Error executing task on Server
java.lang.NullPointerException
	at net.minecraft.server.level.DistanceManager.getChunk(DistanceManager.java:201)
	at net.minecraft.server.level.DistanceManager.removePlayer(DistanceManager.java:201)
	at net.minecraft.server.level.ChunkMap.move(ChunkMap.java:904)
	at net.minecraft.server.level.ServerChunkCache.move(ServerChunkCache.java:479)
	at net.minecraft.server.network.ServerGamePacketListenerImpl.handleMovePlayer(ServerGamePacketListenerImpl.java:848)
	at net.minecraft.network.protocol.game.ServerboundMovePlayerPacket.handle(ServerboundMovePlayerPacket.java:122)
	at net.minecraft.network.protocol.game.ServerboundMovePlayerPacket$Pos.handle(ServerboundMovePlayerPacket.java:56)
	at net.minecraft.network.protocol.PacketUtils.ensureRunningOnSameThread(PacketUtils.java:21)
	at net.minecraft.network.protocol.PacketUtils.lambda$ensureRunningOnSameThread$0(PacketUtils.java:21)
	at lv$$Lambda$3253/675643744.run(Unknown Source)
	at net.minecraft.server.TickTask.run(TickTask.java:18)
	at net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:144)
	at net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23)
	at net.minecraft.server.MinecraftServer.doRunTask(MinecraftServer.java:743)
	at net.minecraft.server.MinecraftServer.doRunTask(MinecraftServer.java:138)
	at net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:118)
	at net.minecraft.server.MinecraftServer.pollTaskInternal(MinecraftServer.java:725)
	at net.minecraft.server.MinecraftServer.pollTask(MinecraftServer.java:719)
	at net.minecraft.util.thread.BlockableEventLoop.managedBlock(BlockableEventLoop.java:127)
	at net.minecraft.server.MinecraftServer.waitUntilNextTick(MinecraftServer.java:704)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:659)
	at java.lang.Thread.run(Thread.java:745)