From 7e21fdd86224a50cbad43a7b1a66f40cc6cb3790 Mon Sep 17 00:00:00 2001
From: Marco Cunha <marco.cunha@gmail.com>
Date: Mon, 10 Sep 2012 01:53:16 +0300
Subject: [PATCH] Fix ore dupe bug with ore blocks on pistons

---
 .../java/com/gmail/nossr50/listeners/BlockListener.java     | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/main/java/com/gmail/nossr50/listeners/BlockListener.java b/src/main/java/com/gmail/nossr50/listeners/BlockListener.java
index d952f3dca..37849d1a0 100644
--- a/src/main/java/com/gmail/nossr50/listeners/BlockListener.java
+++ b/src/main/java/com/gmail/nossr50/listeners/BlockListener.java
@@ -58,11 +58,15 @@ public class BlockListener implements Listener {
     public void onBlockPistonExtend(BlockPistonExtendEvent event) {
         List<Block> blocks = event.getBlocks();
         BlockFace direction = event.getDirection();
+        // Block that would be air after piston is finished
+        Block futureEmptyBlock = event.getBlock().getRelative(direction);
 
         for (Block b : blocks) {
             if (mcMMO.placeStore.isTrue(b)) {
                 b.getRelative(direction).setMetadata("pistonTrack", new FixedMetadataValue(plugin, true));
-                mcMMO.placeStore.setFalse(b);
+                if (b.equals(futureEmptyBlock)) {
+                    mcMMO.placeStore.setFalse(b);
+                }
             }
         }