Where a course format has course option names that match section option names, settings are not restored correctly from a course backup.  This seems to have been caused by MDL-65478.

This looks like it may be related to MDL-74698.

Testing Instructions
1. Requires a Moodle test server with Multitopic format installed.
2. Log in.
3. Add a new course in Multitopic format with Topic duration set to 1 day.
4. Add a topic, and set Topic duration override to 1 week.
5. Backup course.
6. Restore backup as a new course.
7. Verify the course setting Period duration is set to 1 day.

To Fix
In backup/moodle2/restore_stepslib.php function process_course_format_option()
Change:
        $record = $DB->get_record('course_format_options', [ 'courseid' => $courseid, 'name' => $data['name'] ], 'id');

To:
        $record = $DB->get_record('course_format_options', [ 'courseid' => $courseid, 'name' => $data['name'], 'sectionid' => $data['sectionid'] ], 'id');