From 2a9d9d7750cc9d6f0642032741dd62ee88e87a0f Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Mon, 2 Jan 2017 16:32:56 -0500
Subject: [PATCH] ShulkerBox Dupe Prevention

This ensures that Shulker Boxes can never drop their contents twice, and
that the inventory is cleared incase it some how also got saved to the world.

diff --git a/src/main/java/net/minecraft/server/BlockShulkerBox.java b/src/main/java/net/minecraft/server/BlockShulkerBox.java
index fcb1a6c..12fb816 100644
--- a/src/main/java/net/minecraft/server/BlockShulkerBox.java
+++ b/src/main/java/net/minecraft/server/BlockShulkerBox.java
@@ -109,6 +109,7 @@ public class BlockShulkerBox extends BlockTileEntity {
                 }
 
                 a(world, blockposition, itemstack);
+                tileentityshulkerbox.clear(); // Paper - This was intended to be called in Vanilla (is checked in the if statement above if has been called) - Fixes dupe issues
             }
 
             world.updateAdjacentComparators(blockposition, iblockdata.getBlock());
-- 
2.9.3