From b0d4f768742d519fc88673725c5ceac01298a4f2 Mon Sep 17 00:00:00 2001
From: AlgorithmX2 <AlgorithmX2@gmail.com>
Date: Mon, 11 Aug 2014 18:58:25 -0500
Subject: [PATCH] Fixed Bug: #0871 - Drive priority error after world reload

---
 tile/storage/TileDrive.java | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/tile/storage/TileDrive.java b/tile/storage/TileDrive.java
index 2e95e6b52..52e318716 100644
--- a/tile/storage/TileDrive.java
+++ b/tile/storage/TileDrive.java
@@ -125,6 +125,7 @@ public class TileDrive extends AENetworkInvTile implements IChestOrDrive, IPrior
 		@Override
 		public void readFromNBT(NBTTagCompound data)
 		{
+			isCached = false;
 			priority = data.getInteger( "priority" );
 		}
 
@@ -175,8 +176,11 @@ public class TileDrive extends AENetworkInvTile implements IChestOrDrive, IPrior
 	@Override
 	public void onChangeInventory(IInventory inv, int slot, InvOperation mc, ItemStack removed, ItemStack added)
 	{
-		isCached = false; // recalculate the storage cell.
-		updateState();
+		if ( isCached )
+		{
+			isCached = false; // recalculate the storage cell.
+			updateState();
+		}
 
 		try
 		{