added check of tile group header to test
added check of tile group header to test

seojungmin/peloton,prashasthip/peloton,eric-haibin-lin/peloton-1,haojin2/peloton,vittvolt/15721-peloton,ShuxinLin/peloton,apavlo/peloton,malin1993ml/peloton,yingjunwu/peloton,apavlo/peloton,prashasthip/peloton,cmu-db/peloton,malin1993ml/peloton,vittvolt/15721-peloton,phisiart/peloton-p3,AllisonWang/peloton,vittvolt/15721-peloton,AllisonWang/peloton,phisiart/peloton-p3,eric-haibin-lin/peloton-1,jessesleeping/iso_peloton,vittvolt/peloton,vittvolt/peloton,vittvolt/peloton,seojungmin/peloton,yingjunwu/peloton,AngLi-Leon/peloton,haojin2/peloton,jessesleeping/iso_peloton,eric-haibin-lin/peloton-1,haojin2/peloton,seojungmin/peloton,jessesleeping/iso_peloton,haojin2/peloton,ShuxinLin/peloton,wangziqi2016/peloton,cmu-db/peloton,AngLi-Leon/peloton,vittvolt/peloton,malin1993ml/peloton,ShuxinLin/peloton,AngLi-Leon/peloton,jessesleeping/iso_peloton,vittvolt/15721-peloton,ShuxinLin/peloton,PauloAmora/peloton,cmu-db/peloton,AngLi-Leon/peloton,apavlo/peloton,prashasthip/peloton,AllisonWang/peloton,AngLi-Leon/peloton,malin1993ml/peloton,vittvolt/peloton,eric-haibin-lin/peloton-1,seojungmin/peloton,seojungmin/peloton,haojin2/peloton,PauloAmora/peloton,AllisonWang/peloton,PauloAmora/peloton,seojungmin/peloton,haojin2/peloton,ShuxinLin/peloton,PauloAmora/peloton,phisiart/peloton-p3,phisiart/peloton-p3,AllisonWang/peloton,ShuxinLin/peloton,wangziqi2016/peloton,malin1993ml/peloton,vittvolt/15721-peloton,wangziqi2016/peloton,eric-haibin-lin/peloton-1,cmu-db/peloton,vittvolt/15721-peloton,apavlo/peloton,eric-haibin-lin/peloton-1,cmu-db/peloton,wangziqi2016/peloton,prashasthip/peloton,jessesleeping/iso_peloton,wangziqi2016/peloton,wangziqi2016/peloton,yingjunwu/peloton,apavlo/peloton,phisiart/peloton-p3,AngLi-Leon/peloton,apavlo/peloton,yingjunwu/peloton,PauloAmora/peloton,yingjunwu/peloton,phisiart/peloton-p3,PauloAmora/peloton,malin1993ml/peloton,prashasthip/peloton,yingjunwu/peloton,AllisonWang/peloton,prashasthip/peloton,jessesleeping/iso_peloton,jessesleeping/iso_peloton,cmu-db/peloton,vittvolt/peloton