Rename conf setting not_empty_session_student_list_for_multiple_subscription to session_multiple_subscription_students_list_avoid_emptying - refs BT#13597

main/install/configuration.dist.php

@@ -676,6 +676,6 @@ $_configuration['gradebook_badge_sidebar'] = [
 // Redirect to home tool after uploading a student publication or a adding a comment
 //$_configuration['allow_redirect_to_main_page_after_work_upload'] = false;
 // Empty the session student list when subscribing multiple users
-//$_configuration['not_empty_session_student_list_for_multiple_subscription'] = false;
+//$_configuration['session_multiple_subscription_students_list_avoid_emptying'] = false;
 // Disable the option to set course coach in session when editing course
 //$_configuration['disabled_edit_session_coaches_course_editing_course'] = false;

main/session/add_users_to_session.php

@@ -330,7 +330,7 @@ if (isset($_POST['form_sent']) && $_POST['form_sent']) {
     }
 
     if ($form_sent == 1) {
-        $notEmptyList = api_get_configuration_value('not_empty_session_student_list_for_multiple_subscription');
+        $notEmptyList = api_get_configuration_value('session_multiple_subscription_students_list_avoid_emptying');
 
         // Added a parameter to send emails when registering a user
         SessionManager::subscribe_users_to_session(