PaperMC/Spigot-Server-Patches/0455-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 61c9e030a105ee78a7e59fbf36cf7a77f87a0e88..c4d433430503e844121f1917c6caf05823af0a34 100644
--- a/src/main/java/net/minecraft/server/EntityHuman.java
+++ b/src/main/java/net/minecraft/server/EntityHuman.java
@@ -978,7 +978,7 @@ 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