From 47d7c667de3f4ce6f04e404a63ce43916f1f6e9c Mon Sep 17 00:00:00 2001
From: Chicken-Bomes <mehvids@gmail.com>
Date: Thu, 1 May 2014 00:24:23 +1000
Subject: [PATCH] Fix issue with double checking slots for fitting stacks in
 simulate mode

---
 src/codechicken/lib/inventory/InventoryUtils.java | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/codechicken/lib/inventory/InventoryUtils.java b/src/codechicken/lib/inventory/InventoryUtils.java
index 3f922e3..4c1c133 100644
--- a/src/codechicken/lib/inventory/InventoryUtils.java
+++ b/src/codechicken/lib/inventory/InventoryUtils.java
@@ -193,6 +193,8 @@ public class InventoryUtils
         for (int pass = 0; pass < 2; pass++) {
             for (int slot : inv.slots) {
                 ItemStack base = inv.inv.getStackInSlot(slot);
+                if((pass == 0) == (base == null))
+                    continue;
                 int fit = fitStackInSlot(inv, slot, stack);
                 if (fit == 0)
                     continue;
@@ -203,7 +205,7 @@ public class InventoryUtils
                         base.stackSize += fit;
                         inv.inv.setInventorySlotContents(slot, base);
                     }
-                } else if (pass == 1) {
+                } else {
                     if (!simulate)
                         inv.inv.setInventorySlotContents(slot, copyStack(stack, fit));
                     stack.stackSize -= fit;