When creating a new assignment with TII feature , the default is 'None' for the repository in which to submit/store the student's paper. Remove any default so that the assignment creator is forced to make a conscious selection. Pop up a reminder box if they have not done so.
1. Add new Assignment.
2. Select Turnitin option.
3. Check that there is no pre-selected default for 'Submit papers to the following repository'.
4. Try to proceed without making a selection.
5. Check that pop-up reminder appears to force you to make a selection at this point.
6. Make a selection and proceed with the rest of the assignment creation.
This is configured by turnitin.repository.setting.value. I've made my fix so that this server config will override the fix. As such we should make sure it is not set.