Allow plugins to attach data to grade items during backup and restore

Install a helper plugin  https://github.com/dmitriim/moodle-local_helper  to local/helper Create a course. Create a manual grade item: within the course  navigate to Grades > Setup Enable debugging on: Site administration -> Development -> Debugging.  Tail the web server's error log: tail -f /var/log/apache2/error*log Note: It may be located somewhere else. Back up the course using default settings Confirm sure that you can see "Yay, attaching data to grade item!" in your error log file Restore the course using default settings Confirm that you can see "Yay, restoring data for grade item: 1 - Test helper" in your error log file . Download the file and rename it to 69418.tgz Unzip it: tar -zxf 69418.tgz Open the expanded gradebook.xml Confirm that the test category you created is present Navigate to the Gradebook in the newly created course Confirm that the Manual Grade item was also restored