Prevent a number of AE2 blocks from reloading a chunk while its unloading.

tile/AEBaseTile.java

@@ -48,6 +48,11 @@ public class AEBaseTile extends TileEntity implements IOrientable, ICommonTile,
 	public int renderFragment = 0;
 	public String customName;
 
+	public boolean notLoaded()
+	{
+		return !worldObj.blockExists( xCoord, yCoord, zCoord );
+	}
+
 	public TileEntity getTile()
 	{
 		return this;

tile/crafting/TileCraftingStorageTile.java

@@ -37,7 +37,7 @@ public class TileCraftingStorageTile extends TileCraftingTile
 
 	public int getStorageBytes()
 	{
-		if ( worldObj == null )
+		if ( worldObj == null || notLoaded() )
 			return 0;
 
 		switch (worldObj.getBlockMetadata( xCoord, yCoord, zCoord ) & 3)

tile/crafting/TileCraftingTile.java

@@ -154,6 +154,9 @@ public class TileCraftingTile extends AENetworkTile implements IAEMultiBlock, IP
 
 	public void updateMeta(boolean updateFormed)
 	{
+		if ( worldObj == null || notLoaded() )
+			return;
+
 		boolean formed = isFormed();
 		boolean power = false;
 

tile/networking/TileEnergyCell.java

@@ -31,6 +31,9 @@ public class TileEnergyCell extends AENetworkTile implements IAEPowerStorage
 
 	private void changePowerLevel()
 	{
+		if ( notLoaded() )
+			return;
+
 		byte leel = (byte) (8.0 * (internalCurrentPower / internalMaxPower));
 
 		if ( leel > 7 )