diff --git a/src/block/Sign.php b/src/block/Sign.php
index 45640e968..2994759dd 100644
--- a/src/block/Sign.php
+++ b/src/block/Sign.php
@@ -59,11 +59,6 @@ class Sign extends Transparent{
 		$this->text = new SignText();
 	}
 
-	public function __clone(){
-		parent::__clone();
-		$this->text = clone $this->text;
-	}
-
 	public function getId() : int{
 		return $this->facing === Facing::UP ? parent::getId() : $this->idInfo->getSecondId();
 	}
diff --git a/src/item/ItemBlockWallOrFloor.php b/src/item/ItemBlockWallOrFloor.php
new file mode 100644
index 000000000..763d60e03
--- /dev/null
+++ b/src/item/ItemBlockWallOrFloor.php
@@ -0,0 +1,28 @@
+<?php
+
+/*
+ *
+ *  ____            _        _   __  __ _                  __  __ ____
+ * |  _ \ ___   ___| | _____| |_|  \/  (_)_ __   ___      |  \/  |  _ \
+ * | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
+ * |  __/ (_) | (__|   <  __/ |_| |  | | | | | |  __/_____| |  | |  __/
+ * |_|   \___/ \___|_|\_\___|\__|_|  |_|_|_| |_|\___|     |_|  |_|_|
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * @author PocketMine Team
+ * @link http://www.pocketmine.net/
+ *
+ *
+*/
+
+declare(strict_types=1);
+
+namespace pocketmine\item;
+
+final class ItemBlockWallOrFloor{
+
+}