closes PFS-2226
Tests:
1. Create a course with two or more sections
2. Create a Quiz with submissions.
3. with student A submit a submission to the quiz in the first section
4. With Student B submit a submittion to the quiz in the second section
5. As a teacher navigate to the quiz statistics section and view the
results
6. By default all submission will show, once you select a section only
that sections results will show.
Change-Id: Ifd32bbfb67068008f008b8323a10b9ea18a67468
Reviewed-on: https://gerrit.instructure.com/58962
Tested-by: Jenkins
Reviewed-by: Ryan Taylor <rtaylor@instructure.com>
QA-Review: Michael Hargiss <mhargiss@instructure.com>
Product-Review: Jason Sparks <jsparks@instructure.com>
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