From bbc7fb93de71e27eb4f6369968bbb720ef74410a Mon Sep 17 00:00:00 2001
From: Ralf Becker <RalfBecker@outdoor-training.de>
Date: Tue, 16 Nov 2021 18:20:19 +0100
Subject: [PATCH] fix PHP 8.0 TypeError: in_array(): Argument #2 ($haystack)
 must be of type array, null given

---
 api/src/Vfs.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/api/src/Vfs.php b/api/src/Vfs.php
index 291407118a..931975dd37 100644
--- a/api/src/Vfs.php
+++ b/api/src/Vfs.php
@@ -1909,6 +1909,10 @@ class Vfs extends Vfs\Base
 	 */
 	static public function copy_files(array $src, $dst, &$errs=null, array &$copied=null)
 	{
+		if (!is_array($copied))
+		{
+			$copied = [];
+		}
 		if (self::is_dir($dst))
 		{
 			foreach ($src as $file)