Merge branch 'stable'

src/entity/Entity.php

@@ -1436,6 +1436,9 @@ abstract class Entity{
 	}
 
 	public function spawnTo(Player $player) : void{
+		if($player->getWorld() !== $this->getWorld()){
+			throw new \InvalidArgumentException("Player is not in the same world");
+		}
 		$id = spl_object_id($player);
 		//TODO: this will cause some visible lag during chunk resends; if the player uses a spawn egg in a chunk, the
 		//created entity won't be visible until after the resend arrives. However, this is better than possibly crashing