From 774cf2a2ca0c705a37dac2cf6f9ad7ae40875b0c Mon Sep 17 00:00:00 2001
From: mbax <matt@phozop.net>
Date: Tue, 2 Jul 2013 19:34:08 -0400
Subject: [PATCH] Update client on cancelled leash. Fixes BUKKIT-4395

---
 src/main/java/net/minecraft/server/PlayerConnection.java | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/main/java/net/minecraft/server/PlayerConnection.java b/src/main/java/net/minecraft/server/PlayerConnection.java
index f82d932df4..f201933daf 100644
--- a/src/main/java/net/minecraft/server/PlayerConnection.java
+++ b/src/main/java/net/minecraft/server/PlayerConnection.java
@@ -1106,6 +1106,10 @@ public class PlayerConnection extends Connection {
                     this.server.getPluginManager().callEvent(event);
 
                     if (event.isCancelled()) {
+                        if (itemInHand != null && itemInHand.id == Item.LEASH.id && entity instanceof EntityInsentient) {
+                            // Refresh the current leash state
+                            this.sendPacket(new Packet39AttachEntity(1, entity, ((EntityInsentient) entity).bE()));
+                        }
                         return;
                     }
                     // CraftBukkit end