Paper/patches/server/0639-don-t-attempt-to-teleport-dead-entities.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: sulu5890 <sulu@sulu.me>
Date: Sun, 24 Oct 2021 22:48:14 -0500
Subject: [PATCH] don't attempt to teleport dead entities


diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
index 0034e06a3caa89dfbb24a75d377d799ca0e8aed0..7966d45adcbc239a506ab4aa2923a6df0dc36c03 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -730,7 +730,7 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
     // CraftBukkit start
     public void postTick() {
         // No clean way to break out of ticking once the entity has been copied to a new world, so instead we move the portalling later in the tick cycle
-        if (!(this instanceof ServerPlayer)) {
+        if (!(this instanceof ServerPlayer) && this.isAlive()) { // Paper - don't attempt to teleport dead entities
             this.handleNetherPortal();
         }
     }