From e80a8c46c6462f6ab527d9ab29be39f9b904c84e 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 de8fc8bba..978c9954d 100644
--- a/src/main/java/net/minecraft/server/BlockShulkerBox.java
+++ b/src/main/java/net/minecraft/server/BlockShulkerBox.java
@@ -100,6 +100,7 @@ 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());
-- 
2.20.0