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/level/EntityPlayer.java b/src/main/java/net/minecraft/server/level/EntityPlayer.java
index fa315f10219dc340da4f51a8d4a78e1f33023bb3..afa87cf70ad978161853771c59f5a4906733cab3 100644
--- a/src/main/java/net/minecraft/server/level/EntityPlayer.java
+++ b/src/main/java/net/minecraft/server/level/EntityPlayer.java
@@ -2059,8 +2059,8 @@ public class EntityPlayer extends EntityHuman implements ICrafting {
     }
 
     @Override
-    public boolean isFrozen() {
-        return super.isFrozen() || !getBukkitEntity().isOnline();
+    protected boolean isFrozen() {
+        return super.isFrozen() || (this.playerConnection != null && this.playerConnection.isDisconnected()); // Paper
     }
 
     @Override
diff --git a/src/main/java/net/minecraft/server/network/PlayerConnection.java b/src/main/java/net/minecraft/server/network/PlayerConnection.java
index 908d52f48b4bf2ddd638f2d718e1f6cb6148ce0a..8a5a1ca08073d1a4df949a53fbf7e75339bf2761 100644
--- a/src/main/java/net/minecraft/server/network/PlayerConnection.java
+++ b/src/main/java/net/minecraft/server/network/PlayerConnection.java
@@ -2819,7 +2819,7 @@ 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