some bug fix
some bug fix

rishita/mxnet,smolix/incubator-mxnet,Prasad9/incubator-mxnet,ptrendx/mxnet,nicklhy/mxnet,ptrendx/mxnet,stefanhenneking/mxnet,stefanhenneking/mxnet,nicklhy/mxnet,reminisce/mxnet,rahul003/mxnet,hotpxl/mxnet,sxjscience/mxnet,hpi-xnor/BMXNet,CodingCat/mxnet,sxjscience/mxnet,jiajiechen/mxnet,pluskid/mxnet,LinkHS/incubator-mxnet,fullfanta/mxnet,indhub/mxnet,madjam/mxnet,coder-james/mxnet,weleen/mxnet,apaleyes/mxnet,kkk669/mxnet,TuSimple/mxnet,wangyum/mxnet,ptrendx/mxnet,ForkedReposBak/mxnet,reminisce/mxnet,Northrend/mxnet,solin319/incubator-mxnet,xcgoner/dist-mxnet,nicklhy/mxnet,saurabh3949/mxnet,Mega-DatA-Lab/mxnet,indhub/mxnet,indhub/mxnet,Northrend/mxnet,ForkedReposBak/mxnet,ForkedReposBak/mxnet,likelyzhao/mxnet,likelyzhao/mxnet,luoyetx/mxnet,apaleyes/mxnet,pluskid/mxnet,eric-haibin-lin/mxnet,saurabh3949/mxnet,indhub/mxnet,eric-haibin-lin/mxnet,arank/mxnet,Guneet-Dhillon/mxnet,ShownX/incubator-mxnet,coder-james/mxnet,CodingCat/mxnet,DickJC123/mxnet,lxn2/mxnet,dmlc/mxnet,jiajiechen/mxnet,zhreshold/mxnet,Guneet-Dhillon/mxnet,tlby/mxnet,tlby/mxnet,kkk669/mxnet,zhreshold/mxnet,yajiedesign/mxnet,zhreshold/mxnet,crazy-cat/incubator-mxnet,solin319/incubator-mxnet,antoan2/incubator-mxnet,nicklhy/mxnet,arank/mxnet,luoyetx/mxnet,DickJC123/mxnet,tornadomeet/mxnet,weleen/mxnet,nicklhy/mxnet,stefanhenneking/mxnet,saurabh3949/mxnet,Guneet-Dhillon/mxnet,weleen/mxnet,arikpoz/mxnet,tornadomeet/mxnet,rishita/mxnet,saurabh3949/mxnet,tornadomeet/mxnet,ykim362/mxnet,tlby/mxnet,DR08/mxnet,stefanhenneking/mxnet,szha/mxnet,smolix/incubator-mxnet,ForkedReposBak/mxnet,crazy-cat/incubator-mxnet,Prasad9/incubator-mxnet,jermainewang/mxnet,saurabh3949/mxnet,LinkHS/incubator-mxnet,EvanzzzZ/mxnet,CodingCat/mxnet,sergeykolychev/mxnet,pluskid/mxnet,jennyzhang0215/incubator-mxnet,pluskid/mxnet,hesseltuinhof/mxnet,jermainewang/mxnet,ZihengJiang/mxnet,lxn2/mxnet,szha/mxnet,ZihengJiang/mxnet,jiajiechen/mxnet,yuruofeifei/mxnet,sergeykolychev/mxnet,crazy-cat/incubator-mxnet,LinkHS/incubator-mxnet,wangyum/mxnet,solin319/incubator-mxnet,xcgoner/dist-mxnet,Ldpe2G/mxnet,DR08/mxnet,jennyzhang0215/incubator-mxnet,indhub/mxnet,precedenceguo/mxnet,rahul003/mxnet,likelyzhao/mxnet,kevinthesun/mxnet,vikingMei/mxnet,Mega-DatA-Lab/mxnet,TuSimple/mxnet,rahul003/mxnet,Prasad9/incubator-mxnet,kkk669/mxnet,mbaijal/incubator-mxnet,mbaijal/incubator-mxnet,arikpoz/mxnet,kevinthesun/mxnet,piiswrong/mxnet,wangyum/mxnet,piiswrong/mxnet,Ldpe2G/mxnet,DR08/mxnet,Guneet-Dhillon/mxnet,luoyetx/mxnet,hpi-xnor/BMXNet,indhub/mxnet,TuSimple/mxnet,xcgoner/dist-mxnet,jamesliu/mxnet,zhreshold/mxnet,navrasio/mxnet,crazy-cat/incubator-mxnet,fullfanta/mxnet,Guneet-Dhillon/mxnet,xcgoner/dist-mxnet,EvanzzzZ/mxnet,mbaijal/incubator-mxnet,hpi-xnor/BMXNet,antoan2/incubator-mxnet,leezu/mxnet,sergeykolychev/mxnet,LinkHS/incubator-mxnet,rishita/mxnet,piiswrong/mxnet,lxn2/mxnet,larroy/mxnet,stefanhenneking/mxnet,formath/mxnet,arikpoz/mxnet,kkk669/mxnet,wangyum/mxnet,tlby/mxnet,thirdwing/mxnet,LinkHS/incubator-mxnet,jennyzhang0215/incubator-mxnet,apaleyes/mxnet,piiswrong/mxnet,CodingCat/mxnet,apache/incubator-mxnet,lxn2/mxnet,navrasio/mxnet,CodingCat/mxnet,madjam/mxnet,jennyzhang0215/incubator-mxnet,yuruofeifei/mxnet,kkk669/mxnet,ShownX/incubator-mxnet,ptrendx/mxnet,jiajiechen/mxnet,jennyzhang0215/incubator-mxnet,TuSimple/mxnet,hotpxl/mxnet,apaleyes/mxnet,ShownX/incubator-mxnet,lxn2/mxnet,wangyum/mxnet,eric-haibin-lin/mxnet,apaleyes/mxnet,larroy/mxnet,Ldpe2G/mxnet,sxjscience/mxnet,eric-haibin-lin/mxnet,ForkedReposBak/mxnet,vikingMei/mxnet,indhub/mxnet,ykim362/mxnet,jiajiechen/mxnet,tlby/mxnet,DR08/mxnet,Prasad9/incubator-mxnet,mbaijal/incubator-mxnet,jermainewang/mxnet,danithaca/mxnet,ZihengJiang/mxnet,LinkHS/incubator-mxnet,thirdwing/mxnet,jamesliu/mxnet,vikingMei/mxnet,arikpoz/mxnet,smolix/incubator-mxnet,tornadomeet/mxnet,danithaca/mxnet,weleen/mxnet,Prasad9/incubator-mxnet,weleen/mxnet,madjam/mxnet,nicklhy/mxnet,thirdwing/mxnet,mbaijal/incubator-mxnet,stefanhenneking/mxnet,nicklhy/mxnet,ykim362/mxnet,Mega-DatA-Lab/mxnet,vikingMei/mxnet,xcgoner/dist-mxnet,larroy/mxnet,eric-haibin-lin/mxnet,navrasio/mxnet,mbaijal/incubator-mxnet,luoyetx/mxnet,hotpxl/mxnet,hesseltuinhof/mxnet,indhub/mxnet,yajiedesign/mxnet,reminisce/mxnet,Ldpe2G/mxnet,EvanzzzZ/mxnet,thirdwing/mxnet,ptrendx/mxnet,madjam/mxnet,sergeykolychev/mxnet,Prasad9/incubator-mxnet,rishita/mxnet,dmlc/mxnet,lxn2/mxnet,jamesliu/mxnet,crazy-cat/incubator-mxnet,ptrendx/mxnet,piiswrong/mxnet,rahul003/mxnet,weleen/mxnet,leezu/mxnet,formath/mxnet,hpi-xnor/BMXNet,Northrend/mxnet,formath/mxnet,ShownX/incubator-mxnet,tlby/mxnet,jermainewang/mxnet,jiajiechen/mxnet,leezu/mxnet,wangyum/mxnet,crazy-cat/incubator-mxnet,yajiedesign/mxnet,apache/incubator-mxnet,dmlc/mxnet,danithaca/mxnet,apaleyes/mxnet,TuSimple/mxnet,Ldpe2G/mxnet,mbaijal/incubator-mxnet,solin319/incubator-mxnet,likelyzhao/mxnet,fullfanta/mxnet,hpi-xnor/BMXNet,szha/mxnet,luoyetx/mxnet,hotpxl/mxnet,sergeykolychev/mxnet,kevinthesun/mxnet,EvanzzzZ/mxnet,kevinthesun/mxnet,piiswrong/mxnet,yuruofeifei/mxnet,eric-haibin-lin/mxnet,vikingMei/mxnet,pluskid/mxnet,navrasio/mxnet,yuruofeifei/mxnet,saurabh3949/mxnet,hotpxl/mxnet,formath/mxnet,jamesliu/mxnet,yuruofeifei/mxnet,precedenceguo/mxnet,yajiedesign/mxnet,DickJC123/mxnet,piiswrong/mxnet,ShownX/incubator-mxnet,sergeykolychev/mxnet,Mega-DatA-Lab/mxnet,sxjscience/mxnet,smolix/incubator-mxnet,yajiedesign/mxnet,leezu/mxnet,eric-haibin-lin/mxnet,TuSimple/mxnet,coder-james/mxnet,jennyzhang0215/incubator-mxnet,likelyzhao/mxnet,arank/mxnet,arikpoz/mxnet,TuSimple/mxnet,hpi-xnor/BMXNet,crazy-cat/incubator-mxnet,sxjscience/mxnet,rishita/mxnet,apaleyes/mxnet,yuruofeifei/mxnet,zhreshold/mxnet,zhreshold/mxnet,DR08/mxnet,hesseltuinhof/mxnet,precedenceguo/mxnet,hesseltuinhof/mxnet,solin319/incubator-mxnet,solin319/incubator-mxnet,hesseltuinhof/mxnet,TuSimple/mxnet,xcgoner/dist-mxnet,likelyzhao/mxnet,mbaijal/incubator-mxnet,tornadomeet/mxnet,precedenceguo/mxnet,madjam/mxnet,ZihengJiang/mxnet,crazy-cat/incubator-mxnet,DR08/mxnet,jennyzhang0215/incubator-mxnet,apaleyes/mxnet,jennyzhang0215/incubator-mxnet,ForkedReposBak/mxnet,hpi-xnor/BMXNet,yuruofeifei/mxnet,sxjscience/mxnet,dmlc/mxnet,hesseltuinhof/mxnet,EvanzzzZ/mxnet,thirdwing/mxnet,tlby/mxnet,jermainewang/mxnet,antoan2/incubator-mxnet,navrasio/mxnet,danithaca/mxnet,arank/mxnet,Mega-DatA-Lab/mxnet,luoyetx/mxnet,leezu/mxnet,CodingCat/mxnet,rahul003/mxnet,smolix/incubator-mxnet,formath/mxnet,navrasio/mxnet,hotpxl/mxnet,jiajiechen/mxnet,ykim362/mxnet,precedenceguo/mxnet,ShownX/incubator-mxnet,eric-haibin-lin/mxnet,dmlc/mxnet,wangyum/mxnet,jiajiechen/mxnet,antoan2/incubator-mxnet,szha/mxnet,formath/mxnet,larroy/mxnet,coder-james/mxnet,dmlc/mxnet,TuSimple/mxnet,tlby/mxnet,ykim362/mxnet,coder-james/mxnet,arank/mxnet,nicklhy/mxnet,jiajiechen/mxnet,apaleyes/mxnet,luoyetx/mxnet,lxn2/mxnet,sergeykolychev/mxnet,weleen/mxnet,reminisce/mxnet,reminisce/mxnet,likelyzhao/mxnet,kevinthesun/mxnet,arank/mxnet,coder-james/mxnet,lxn2/mxnet,Northrend/mxnet,larroy/mxnet,Northrend/mxnet,formath/mxnet,arikpoz/mxnet,ForkedReposBak/mxnet,jamesliu/mxnet,weleen/mxnet,Guneet-Dhillon/mxnet,ForkedReposBak/mxnet,LinkHS/incubator-mxnet,jennyzhang0215/incubator-mxnet,yajiedesign/mxnet,smolix/incubator-mxnet,wangyum/mxnet,hesseltuinhof/mxnet,zhreshold/mxnet,precedenceguo/mxnet,ZihengJiang/mxnet,hesseltuinhof/mxnet,madjam/mxnet,Guneet-Dhillon/mxnet,danithaca/mxnet,ykim362/mxnet,larroy/mxnet,Guneet-Dhillon/mxnet,sxjscience/mxnet,yuruofeifei/mxnet,navrasio/mxnet,tlby/mxnet,tornadomeet/mxnet,yajiedesign/mxnet,antoan2/incubator-mxnet,navrasio/mxnet,ZihengJiang/mxnet,Northrend/mxnet,kevinthesun/mxnet,mbaijal/incubator-mxnet,gautamkmr/incubator-mxnet,yajiedesign/mxnet,saurabh3949/mxnet,jamesliu/mxnet,xcgoner/dist-mxnet,leezu/mxnet,ForkedReposBak/mxnet,reminisce/mxnet,CodingCat/mxnet,rishita/mxnet,smolix/incubator-mxnet,solin319/incubator-mxnet,solin319/incubator-mxnet,Northrend/mxnet,jermainewang/mxnet,reminisce/mxnet,Guneet-Dhillon/mxnet,LinkHS/incubator-mxnet,danithaca/mxnet,szha/mxnet,ykim362/mxnet,piiswrong/mxnet,precedenceguo/mxnet,reminisce/mxnet,rahul003/mxnet,rishita/mxnet,zhreshold/mxnet,pluskid/mxnet,gautamkmr/incubator-mxnet,Ldpe2G/mxnet,formath/mxnet,dmlc/mxnet,jamesliu/mxnet,larroy/mxnet,jamesliu/mxnet,sxjscience/mxnet,yuruofeifei/mxnet,arikpoz/mxnet,rahul003/mxnet,tlby/mxnet,wangyum/mxnet,ptrendx/mxnet,piiswrong/mxnet,CodingCat/mxnet,coder-james/mxnet,gautamkmr/incubator-mxnet,solin319/incubator-mxnet,Prasad9/incubator-mxnet,indhub/mxnet,reminisce/mxnet,fullfanta/mxnet,antoan2/incubator-mxnet,gautamkmr/incubator-mxnet,fullfanta/mxnet,szha/mxnet,xcgoner/dist-mxnet,larroy/mxnet,leezu/mxnet,saurabh3949/mxnet,stefanhenneking/mxnet,ShownX/incubator-mxnet,arank/mxnet,rahul003/mxnet,vikingMei/mxnet,arank/mxnet,gautamkmr/incubator-mxnet,apache/incubator-mxnet,likelyzhao/mxnet,ykim362/mxnet,antoan2/incubator-mxnet,antoan2/incubator-mxnet,tornadomeet/mxnet,Mega-DatA-Lab/mxnet,apache/incubator-mxnet,madjam/mxnet,EvanzzzZ/mxnet,thirdwing/mxnet,EvanzzzZ/mxnet,hpi-xnor/BMXNet,jamesliu/mxnet,ptrendx/mxnet,jermainewang/mxnet,ZihengJiang/mxnet,szha/mxnet,larroy/mxnet,DR08/mxnet,weleen/mxnet,Northrend/mxnet,Ldpe2G/mxnet,stefanhenneking/mxnet,madjam/mxnet,Mega-DatA-Lab/mxnet,danithaca/mxnet,gautamkmr/incubator-mxnet,kevinthesun/mxnet,pluskid/mxnet,Ldpe2G/mxnet,stefanhenneking/mxnet,yajiedesign/mxnet,ShownX/incubator-mxnet,szha/mxnet,eric-haibin-lin/mxnet,lxn2/mxnet,precedenceguo/mxnet,likelyzhao/mxnet,rishita/mxnet,dmlc/mxnet,kkk669/mxnet,arank/mxnet,Mega-DatA-Lab/mxnet,kkk669/mxnet,navrasio/mxnet,gautamkmr/incubator-mxnet,dmlc/mxnet,nicklhy/mxnet,ptrendx/mxnet,kevinthesun/mxnet,danithaca/mxnet,Mega-DatA-Lab/mxnet,kkk669/mxnet,Prasad9/incubator-mxnet,LinkHS/incubator-mxnet,ykim362/mxnet,pluskid/mxnet,vikingMei/mxnet,vikingMei/mxnet,EvanzzzZ/mxnet,hotpxl/mxnet,coder-james/mxnet,smolix/incubator-mxnet,rahul003/mxnet,Ldpe2G/mxnet,tornadomeet/mxnet,tornadomeet/mxnet,pluskid/mxnet,fullfanta/mxnet,DickJC123/mxnet,reminisce/mxnet,saurabh3949/mxnet,vikingMei/mxnet,szha/mxnet,CodingCat/mxnet,leezu/mxnet,ZihengJiang/mxnet,precedenceguo/mxnet,ZihengJiang/mxnet,gautamkmr/incubator-mxnet,EvanzzzZ/mxnet,thirdwing/mxnet,TuSimple/mxnet,arikpoz/mxnet,gautamkmr/incubator-mxnet,Northrend/mxnet,thirdwing/mxnet,crazy-cat/incubator-mxnet,sxjscience/mxnet,sergeykolychev/mxnet,leezu/mxnet,hotpxl/mxnet,thirdwing/mxnet,jermainewang/mxnet,formath/mxnet,hpi-xnor/BMXNet,luoyetx/mxnet,arikpoz/mxnet,xcgoner/dist-mxnet,hotpxl/mxnet,hesseltuinhof/mxnet,fullfanta/mxnet,ShownX/incubator-mxnet,DR08/mxnet,danithaca/mxnet,DR08/mxnet,antoan2/incubator-mxnet,jermainewang/mxnet,madjam/mxnet,fullfanta/mxnet,coder-james/mxnet,Prasad9/incubator-mxnet,sergeykolychev/mxnet,ptrendx/mxnet,rishita/mxnet,smolix/incubator-mxnet,zhreshold/mxnet,kevinthesun/mxnet,luoyetx/mxnet,fullfanta/mxnet,kkk669/mxnet