Resolve "Make exam a many to many field on StudentInfo model"

Closes #233 (closed)

core/models/student_info.py

@@ -53,7 +53,7 @@ class ExamInfo(models.Model):
         if self.student.submissions.all():
             return OrderedDict({
                 s.type.name: s.feedback.score if hasattr(s, 'feedback') else 0
-                for s in self.student.submissions.order_by('type__name')
+                for s in self.student.submissions.filter(type__exam_type=self.exam).order_by('type__name')
             })
 
         return OrderedDict({