From b078c9b21409986a6ee694001bafa9baf17a7212 Mon Sep 17 00:00:00 2001
From: Alfie Cleveland <alfeh@me.com>
Date: Tue, 27 Dec 2016 01:57:57 +0000
Subject: [PATCH] Properly fix item duplication bug

Credit to prplz for figuring out the real issue

diff --git a/src/main/java/net/minecraft/server/EntityPlayer.java b/src/main/java/net/minecraft/server/EntityPlayer.java
index 523d91675..60219f97c 100644
--- a/src/main/java/net/minecraft/server/EntityPlayer.java
+++ b/src/main/java/net/minecraft/server/EntityPlayer.java
@@ -1328,7 +1328,7 @@ public class EntityPlayer extends EntityHuman implements ICrafting {
 
     @Override
     protected boolean isFrozen() {
-        return super.isFrozen() || !getBukkitEntity().isOnline();
+        return super.isFrozen() || (this.playerConnection != null && this.playerConnection.isDisconnected()); // Paper
     }
 
     public void reset() {
diff --git a/src/main/java/net/minecraft/server/PlayerConnection.java b/src/main/java/net/minecraft/server/PlayerConnection.java
index 441f761b9..9f721d88c 100644
--- a/src/main/java/net/minecraft/server/PlayerConnection.java
+++ b/src/main/java/net/minecraft/server/PlayerConnection.java
@@ -2542,6 +2542,6 @@ public class PlayerConnection implements PacketListenerPlayIn, ITickable {
 
     // CraftBukkit start - Add "isDisconnected" method
     public final boolean isDisconnected() {
-        return !this.player.joining && !this.networkManager.isConnected();
+        return (!this.player.joining && !this.networkManager.isConnected()) || this.processedDisconnect; // Paper
     }
 }
-- 
2.11.0