handle grade result passback when there is either no course or section
handle grade result passback when there is either no course or section

Change-Id: I7d20b373e93fc4a9703434a9eab3fc718735df66
Reviewed-on: https://gerrit.instructure.com/5865
Tested-by: Hudson <dfb64870173313a9a7b56f814c8e3b33e268497a@instructure.com>
Reviewed-by: Cody Cutrer <c4fe2b1d90ef8f2548c8aeabfa633434316f0305@instructure.com>

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