Moodle 2.0 Preview 4+ (Build: 20100728)

To reproduce:

• login as admin
• access site home page
• click on Setitngs->Backup

Error displayed:

error/setting_invalid_ui_label

Stack trace:

• line 448 of /backup/util/settings/base_setting.class.php: base_setting_exception thrown
• line 69 of /backup/util/settings/backup_setting.class.php: call to base_setting->validate_ui_label()
• line 44 of /backup/moodle2/backup_settingslib.php: call to backup_setting->make_ui()
• line 52 of /backup/moodle2/backup_root_task.class.php: call to backup_filename_setting->set_ui()
• line 126 of /backup/util/plan/base_task.class.php: call to backup_root_task->define_settings()
• line 60 of /backup/util/plan/base_plan.class.php: call to base_task->set_plan()
• line 77 of /backup/moodle2/backup_plan_builder.class.php: call to base_plan->add_task()
• line 163 of /backup/util/factories/backup_factory.class.php: call to backup_plan_builder::build_plan()
• line 50 of /backup/util/plan/backup_plan.class.php: call to backup_factory::build_plan()
• line 298 of /backup/controller/backup_controller.class.php: call to backup_plan->build()
• line 116 of /backup/controller/backup_controller.class.php: call to backup_controller->load_plan()
• line 82 of /backup/backup.php: call to backup_controller->__construct()