Links to the gradebook are not updated on backup and restore

1. Create a course.
2. Add link resources to the course page, pointing to:
   • /grade/index.php?id= {id}
     #* /grade/report/index.php?id={id}
   • /badges/view.php?type=2&id= {id}
     #* /user/index.php?id={id}
3. You should probably check those links work before proceeding.
4. Backup the course, and restore it to a new course.
5. Check those links work in the new course.

(Note, badges does not exist in 2.4, so skip that combination.)