*DESCRIPTION*

After removing an assignment submission, the file still displays in the assignment grader despite no submissions showing in the assignment submissions view. 

*STEPS TO REPLICATE*

1. Create a course
2. Create an assignment
3. Enroll a student to test with
4. Login as student and make submission
5. Review assignment submission page and assignment grading page to verify assignment displays as expected
6. Now remove the submission
7. Go to grade the assignment again

OBSERVED BEHAVIOR:
The deleted file still displays in the assignment grader

EXPECTED BEHAVIOR:
The removed submission should no longer display in the assignment grader

Workaround: ** 
Have the student make a new assignment, which should present the new file in the grader.

*ADDITIONAL INVESTIGATION NOTES*

This seems to not affect duplicate files. 

When 2 test users uploaded the same file, the second user's file no longer displayed in the grader once it was removed.

This could present a wider issue, indicating the deleted files are not actually being removed
https://moodle.org/mod/forum/discuss.php?d=456793