DONT UPGRADE YET! On previous weekly (must not contain the fix for MDL-43306 ): Setup: Create COURSE1 with default settings Add an assignment 'Assign 1' with default settings Create COURSE2 with default settings Add an assignment 'Assign 2' with default settings VERIFY: Examine the database and ensure the grade items exist, and both have the same sort order in different courses. e.g: SELECT id, itemname, courseid, sortorder FROM mdl_grade_items WHERE itemname LIKE 'Assign%' ORDER BY sortorder, courseid;   id | itemname | courseid | sortorder ----+----------+----------+----------- 4 | Assign 1 | 2 | 2 2 | Assign 2 | 3 | 2 Create duplicates through import: Go to COURSE1 Select import, choose COURSE2 Choose ONLY to import ASSIGNCOURSE2 VERIFY: Examine the database and ensure the grade items that are imported have created duplicates, there should be results fem the following query: SELECT courseid, sortorder FROM {grade_items} GROUP BY courseid, sortorder HAVING COUNT(id) > 1 UPGRADE! VERIFY: Run the same query as above, and ensure there now are no results. Go to the Gradebook of COURSE1 Go to Grades > Categories and items > Simple view and ensure that the grade items for the two assignments appear VERIFY: that you can resort the grade items and they behave in the way the interface demonstrates