\external_settings::__construct checks for "defined" variables which are always defined

On Master Turn on autolink filter for all content and heading. Go to a course and edit coursename. Something like this - <span class="multilang" lang="en">your_content_in English</span> <span class="multilang" lang="ar">your_content_in_arabic_here</span> Go to your dashboard and make sure when you switch languages between English and Arabic, correct content is shown in courses summary tab. On all branches Run all test suites (behat + phpunit), this patch can possibly expose other existing bugs. Create a file called test.php with content - define('AJAX_SCRIPT', true); require_once(__DIR__ . '/config.php'); require_once("lib/externallib.php"); $settings = external_settings::get_instance(); print_object((int)$settings->get_filter()); Load it on browser and see the value should be 0 Create another file with code - require_once(__DIR__ . '/config.php'); require_once("lib/externallib.php"); $settings = external_settings::get_instance(); print_object((int)$settings->get_filter()); Load it and check value, should be 1