Fix "&" char in course title see BT#13222

main/admin/course_edit.php

@@ -369,6 +369,7 @@ if ($form->validate()) {
 
     Database::query($sql);
 
+    $title = str_replace('&', '&', $title);
     $params = [
         'course_language' => $course_language,
         'title' => $title,

main/inc/lib/add_course.lib.inc.php

@@ -1159,8 +1159,9 @@ class AddCourse
     public static function register_course($params)
     {
         global $error_msg, $firstExpirationDelay;
-
         $title = $params['title'];
+        // Fix amp
+        $title = str_replace('&', '&', $title);
         $code = $params['code'];
         $visual_code = $params['visual_code'];
         $directory = $params['directory'];