From c8163f835fd704c9000af7ad39248f1afface0ca Mon Sep 17 00:00:00 2001
From: Jan-Hendrik Willms <tleilax+github@gmail.com>
Date: Mon, 25 Mar 2024 21:41:17 +0100
Subject: fixes #3894

---
 lib/extern/lib/ExternEdit.class.php | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/lib/extern/lib/ExternEdit.class.php b/lib/extern/lib/ExternEdit.class.php
index 4c79f81..8061ad1 100644
--- a/lib/extern/lib/ExternEdit.class.php
+++ b/lib/extern/lib/ExternEdit.class.php
@@ -51,11 +51,15 @@ class ExternEdit {
     var $width_2 = " width=\"80%\"";
     var $error_sign = "<font size=\"4\" color=\"ff0000\">&nbsp; &nbsp;<b>*</b></font>";
 
-    function __construct(&$config, $form_values = "", $faulty_values = "",
-             $edit_element = "") {
-
+    function __construct(
+        &$config,
+        $form_values = '',
+        $faulty_values = '',
+        $edit_element = ""
+    ) {
         $this->config =& $config;
-        $this->form_values = $form_values;
+        $this->form_values = is_array($form_values) ? $form_values : [];
+        $this->faulty_values = is_array($faulty_values) ? $faulty_values : [];
         $this->edit_element = $edit_element;
 
         if (is_array($form_values)) {
-- 
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