From 07776c54f30995abf8f9034873d1acbe20364643 Mon Sep 17 00:00:00 2001
From: Thomas Gelf <thomas@gelf.net>
Date: Wed, 20 Feb 2019 05:41:23 +0100
Subject: [PATCH] Upload: do not fail on PHP 7.2

fixes #3689
---
 library/vendor/Zend/Validate/File/Upload.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/library/vendor/Zend/Validate/File/Upload.php b/library/vendor/Zend/Validate/File/Upload.php
index 24a48d1ff..b86c1c7ea 100644
--- a/library/vendor/Zend/Validate/File/Upload.php
+++ b/library/vendor/Zend/Validate/File/Upload.php
@@ -159,7 +159,7 @@ class Zend_Validate_File_Upload extends Zend_Validate_Abstract
      */
     public function isValid($value, $file = null)
     {
-        $this->_messages = null;
+        $this->_messages = [];
         if (array_key_exists($value, $this->_files)) {
             $files[$value] = $this->_files[$value];
         } else {