From 756840f11dc4378d08ed529c5e98839732c7df40 Mon Sep 17 00:00:00 2001
From: "Dylan K. Taylor" <odigiman@gmail.com>
Date: Sun, 2 Aug 2020 23:07:47 +0100
Subject: [PATCH] Fixed matchItems corrupting CraftingTransaction internal
 state on repeated validation This bug became apparent while developing a more
 robust fix for 1.16 crafting.

---
 src/pocketmine/inventory/transaction/InventoryTransaction.php | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/pocketmine/inventory/transaction/InventoryTransaction.php b/src/pocketmine/inventory/transaction/InventoryTransaction.php
index 76c536021..b85395785 100644
--- a/src/pocketmine/inventory/transaction/InventoryTransaction.php
+++ b/src/pocketmine/inventory/transaction/InventoryTransaction.php
@@ -136,6 +136,8 @@ class InventoryTransaction{
 	 * @throws TransactionValidationException
 	 */
 	protected function matchItems(array &$needItems, array &$haveItems) : void{
+		$needItems = [];
+		$haveItems = [];
 		foreach($this->actions as $key => $action){
 			if(!$action->getTargetItem()->isNull()){
 				$needItems[] = $action->getTargetItem();