Paper/patches/server/0372-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 ba8b6d3fbc10eb9f02d3409eb2038827c47ca14d..3563f5d893fb650892ca7231767d505b7a17c8c0 100644
--- a/src/main/java/net/minecraft/world/entity/player/Player.java
+++ b/src/main/java/net/minecraft/world/entity/player/Player.java
@@ -1154,7 +1154,7 @@ 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