Move player to spawn point if spawn in unloaded world

The code following this has better support for null worlds to move
them back to the world spawn.

Spigot-Server-Patches/0488-Move-player-to-spawn-point-if-spawn-in-unloaded-worl.patch

@@ -0,0 +1,30 @@
+From 3d7bdaea0c45ee77416c305159643fc4b397dfee Mon Sep 17 00:00:00 2001
+From: 2277 <38501234+2277@users.noreply.github.com>
+Date: Tue, 31 Mar 2020 10:33:55 +0100
+Subject: [PATCH] Move player to spawn point if spawn in unloaded world
+
+The code following this has better support for null worlds to move
+them back to the world spawn.
+
+diff --git a/src/main/java/net/minecraft/server/Entity.java b/src/main/java/net/minecraft/server/Entity.java
+index 96a47dd1c2..46e631d466 100644
+--- a/src/main/java/net/minecraft/server/Entity.java
++++ b/src/main/java/net/minecraft/server/Entity.java
+@@ -1790,9 +1790,11 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
+                     bworld = server.getWorld(worldName);
+                 }
+ 
+-                if (bworld == null) {
+-                    bworld = ((org.bukkit.craftbukkit.CraftServer) server).getServer().getWorldServer(DimensionManager.OVERWORLD).getWorld();
+-                }
++                // Paper start - Move player to spawn point if spawn in unloaded world
++                // if (bworld == null) {
++                //    bworld = ((org.bukkit.craftbukkit.CraftServer) server).getServer().getWorldServer(DimensionManager.OVERWORLD).getWorld();
++                // }
++                // Paper end
+ 
+                 spawnIn(bworld == null ? null : ((CraftWorld) bworld).getHandle());
+             }
+-- 
+2.25.1
+