fix failure from spec/models/grade_entry_student_spec.rb
fix failure from spec/models/grade_entry_student_spec.rb

binuri/Markus,arkon/Markus,reidka/Markus,melneubert/Markus,benjaminvialle/Markus,binuri/Markus,binuri/Markus,reidka/Markus,MarkUsProject/Markus,WilsonChiang/Markus,binuri/Markus,david-yz-liu/Markus,ealonas/Markus,finnergizer/Markus,reidka/Markus,MarkUsProject/Markus,ealonas/Markus,ealonas/Markus,finnergizer/Markus,WilsonChiang/Markus,david-yz-liu/Markus,arkon/Markus,wkwan/Markus,arkon/Markus,benjaminvialle/Markus,wkwan/Markus,ealonas/Markus,jeremygoh/Markus,finnergizer/Markus,ealonas/Markus,arkon/Markus,arkon/Markus,finnergizer/Markus,melneubert/Markus,wkwan/Markus,WilsonChiang/Markus,binuri/Markus,melneubert/Markus,melneubert/Markus,WilsonChiang/Markus,jeremygoh/Markus,ealonas/Markus,wkwan/Markus,jeremygoh/Markus,reidka/Markus,melneubert/Markus,wkwan/Markus,MarkUsProject/Markus,jeremygoh/Markus,benjaminvialle/Markus,binuri/Markus,MarkUsProject/Markus,finnergizer/Markus,arkon/Markus,david-yz-liu/Markus,david-yz-liu/Markus,benjaminvialle/Markus,WilsonChiang/Markus,melneubert/Markus,wkwan/Markus,jeremygoh/Markus,WilsonChiang/Markus,MarkUsProject/Markus,ealonas/Markus,jeremygoh/Markus,finnergizer/Markus,finnergizer/Markus,melneubert/Markus,benjaminvialle/Markus,ealonas/Markus,reidka/Markus,david-yz-liu/Markus,ealonas/Markus,WilsonChiang/Markus,MarkUsProject/Markus,david-yz-liu/Markus,WilsonChiang/Markus,arkon/Markus,wkwan/Markus,reidka/Markus,finnergizer/Markus,arkon/Markus,binuri/Markus,wkwan/Markus,david-yz-liu/Markus,melneubert/Markus,binuri/Markus,MarkUsProject/Markus,jeremygoh/Markus,benjaminvialle/Markus,melneubert/Markus,reidka/Markus,binuri/Markus,david-yz-liu/Markus,jeremygoh/Markus,wkwan/Markus,jeremygoh/Markus,benjaminvialle/Markus,reidka/Markus,MarkUsProject/Markus,WilsonChiang/Markus,reidka/Markus,david-yz-liu/Markus,arkon/Markus,finnergizer/Markus