From 0000000000000000000000000000000000000000 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 f8c9515f3ee922b6b96d97676ca740bba617721a..fd7513008dde790107647f7f5b9670030696e064 100644
--- a/src/main/java/net/minecraft/server/EntityPlayer.java
+++ b/src/main/java/net/minecraft/server/EntityPlayer.java
@@ -1933,7 +1933,7 @@ 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
     }
 
     @Override
diff --git a/src/main/java/net/minecraft/server/PlayerConnection.java b/src/main/java/net/minecraft/server/PlayerConnection.java
index 3bee1397a00cd5879504c77a761a3112cc73b5c3..a6de594acd00697d0ca55d2caea9cdbf505d6752 100644
--- a/src/main/java/net/minecraft/server/PlayerConnection.java
+++ b/src/main/java/net/minecraft/server/PlayerConnection.java
@@ -2662,7 +2662,7 @@ public class PlayerConnection implements PacketListenerPlayIn {
     }
 
     public final boolean isDisconnected() {
-        return !this.player.joining && !this.networkManager.isConnected();
+        return (!this.player.joining && !this.networkManager.isConnected()) || this.processedDisconnect; // Paper
     }
     // CraftBukkit end