Use WorldServer#entitesById for entity iteration

WorldServer#globalEntityList is not the actual list of entities in a world

Spigot-Server-Patches/Paper-config-files.patch

@@ -6,7 +6,7 @@ Subject: [PATCH] Paper config files
 
 diff --git a/src/main/java/com/destroystokyo/paper/PaperCommand.java b/src/main/java/com/destroystokyo/paper/PaperCommand.java
 new file mode 100644
-index 0000000000..841edd010f
+index 0000000000..b5f318c00d
 --- /dev/null
 +++ b/src/main/java/com/destroystokyo/paper/PaperCommand.java
 @@ -0,0 +0,0 @@
@@ -185,7 +185,7 @@ index 0000000000..841edd010f
 +                }
 +                WorldServer world = ((CraftWorld) Bukkit.getWorld(worldName)).getHandle();
 +
-+                List<Entity> entities = world.globalEntityList;
++                Collection<Entity> entities = world.entitiesById.values();
 +                entities.forEach(e -> {
 +                    MinecraftKey key = new MinecraftKey(""); // TODO: update in next patch
 +