papermc/Spigot-Server-Patches/0454-Don-t-tick-dead-players.patch

From c0c34e10d92aefb26116f3c7865b54debcd31ba7 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Thu, 2 Apr 2020 17:16:48 -0400
Subject: [PATCH] Don't tick dead players

Causes sync chunk loads and who knows what all else.
This is safe because Spectators are skipped in unloaded chunks too in vanilla.

diff --git a/src/main/java/net/minecraft/server/EntityPlayer.java b/src/main/java/net/minecraft/server/EntityPlayer.java
index 900631ebe0..aa9c903aa8 100644
--- a/src/main/java/net/minecraft/server/EntityPlayer.java
+++ b/src/main/java/net/minecraft/server/EntityPlayer.java
@@ -429,7 +429,7 @@ public class EntityPlayer extends EntityHuman implements ICrafting {
 
     public void playerTick() {
         try {
-            if (!this.isSpectator() || this.world.isLoaded(new BlockPosition(this))) {
+            if (valid && (!this.isSpectator() || this.world.isLoaded(new BlockPosition(this)))) { // Paper - don't tick dead players that are not in the world currently (pending respawn)
                 super.tick();
             }
 
-- 
2.26.0