Paper/patches/server/0389-Dead-Player-s-shouldn-t-be-able-to-move.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Thu, 2 Apr 2020 19:31:16 -0400
Subject: [PATCH] Dead Player's shouldn't be able to move

This fixes a lot of game state issues where packets were delayed for processing
due to 1.15's new queue but processed while dead.

diff --git a/src/main/java/net/minecraft/world/entity/player/Player.java b/src/main/java/net/minecraft/world/entity/player/Player.java
index 2c46f54751c49d9adce1a8724b93f06438544129..95b03fbdc0a5483761fce5c5542ce8f3187761c5 100644
--- a/src/main/java/net/minecraft/world/entity/player/Player.java
+++ b/src/main/java/net/minecraft/world/entity/player/Player.java
@@ -1106,7 +1106,7 @@ public abstract class Player extends LivingEntity {
 
     @Override
     protected boolean isImmobile() {
-        return super.isImmobile() || this.isSleeping();
+        return super.isImmobile() || this.isSleeping() || this.isRemoved() || !valid; // Paper - player's who are dead or not in a world shouldn't move...
     }
 
     @Override