Paper/Spigot-Server-Patches/0437-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/server/EntityHuman.java b/src/main/java/net/minecraft/server/EntityHuman.java
index 7916421fe1dd8eadfd1c9bd15c4bbbb7331faca6..22acfe1350eb122b7eaa7209f519e4f4f1469b6c 100644
--- a/src/main/java/net/minecraft/server/EntityHuman.java
+++ b/src/main/java/net/minecraft/server/EntityHuman.java
@@ -952,7 +952,7 @@ public abstract class EntityHuman extends EntityLiving {
 
     @Override
     protected boolean isFrozen() {
-        return super.isFrozen() || this.isSleeping();
+        return super.isFrozen() || this.isSleeping() || dead || !valid; // Paper - player's who are dead or not in a world shouldn't move...
     }
 
     @Override