From 3ca147e405d0a8a88d02adbbfaddb644fd9209d2 Mon Sep 17 00:00:00 2001
From: sk89q <the.sk89q@gmail.com>
Date: Sun, 17 Aug 2014 15:23:34 -0700
Subject: [PATCH] Don't check metadata on Blocks in Cause.

We don't track causes on Blocks. There's no need for the performance hit.
---
 src/main/java/com/sk89q/worldguard/bukkit/cause/Cause.java | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/main/java/com/sk89q/worldguard/bukkit/cause/Cause.java b/src/main/java/com/sk89q/worldguard/bukkit/cause/Cause.java
index c32ed3b5..a2be3f95 100644
--- a/src/main/java/com/sk89q/worldguard/bukkit/cause/Cause.java
+++ b/src/main/java/com/sk89q/worldguard/bukkit/cause/Cause.java
@@ -21,6 +21,7 @@
 
 import com.google.common.base.Joiner;
 import com.sk89q.worldguard.bukkit.util.WGMetadata;
+import org.bukkit.block.Block;
 import org.bukkit.entity.Entity;
 import org.bukkit.entity.Player;
 import org.bukkit.entity.Projectile;
@@ -123,7 +124,7 @@ private static void expand(List<Object> list, @Nullable Object ... element) {
                 // Add manually tracked parent causes
                 Object source = o;
                 int index = list.size();
-                while (source instanceof Metadatable) {
+                while (source instanceof Metadatable && !(source instanceof Block)) {
                     source = WGMetadata.getIfPresent((Metadatable) source, CAUSE_KEY, Object.class);
                     if (source != null) {
                         list.add(index, source);