From 5412d6f5a8d7e63b14a977b15f8da1c823cad351 Mon Sep 17 00:00:00 2001
From: Nathan Adams <dinnerbone@dinnerbone.com>
Date: Mon, 12 Dec 2011 21:23:46 +0000
Subject: [PATCH] Fixed crash with dispensers dispensing dispensables

---
 src/main/java/net/minecraft/server/ItemStack.java | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/src/main/java/net/minecraft/server/ItemStack.java b/src/main/java/net/minecraft/server/ItemStack.java
index b19f5b08be..79e431af69 100644
--- a/src/main/java/net/minecraft/server/ItemStack.java
+++ b/src/main/java/net/minecraft/server/ItemStack.java
@@ -43,11 +43,13 @@ public final class ItemStack {
     public ItemStack(int id, int count, int data, NBTTagList enchantments) {
         this(id, count, data);
         // taken from .addEnchantment
-        if (this.tag == null) {
-            this.setTag(new NBTTagCompound());
-        }
+        if (Item.byId[this.id].getMaxStackSize() == 1) {
+            if (this.tag == null) {
+                this.setTag(new NBTTagCompound());
+            }
 
-        this.tag.set("ench", enchantments); // modify this part to use passed in enchantments list
+            this.tag.set("ench", enchantments.clone()); // modify this part to use passed in enchantments list
+        }
     }
     // CraftBukkit end