Update model.py
Update model.py

adding `eval_data.reset()` at the end of evaluation session to avoid training session being skipped when eval_data and train_data are the same data.
Guneet-Dhillon/mxnet,eric-haibin-lin/mxnet,ykim362/mxnet,kkk669/mxnet,ptrendx/mxnet,jennyzhang0215/incubator-mxnet,nicklhy/mxnet,gautamkmr/incubator-mxnet,kkk669/mxnet,rahul003/mxnet,hpi-xnor/BMXNet,jiajiechen/mxnet,yajiedesign/mxnet,antoan2/incubator-mxnet,sxjscience/mxnet,EvanzzzZ/mxnet,mbaijal/incubator-mxnet,kkk669/mxnet,danithaca/mxnet,dmlc/mxnet,LinkHS/incubator-mxnet,Ldpe2G/mxnet,pluskid/mxnet,ShownX/incubator-mxnet,nicklhy/mxnet,EvanzzzZ/mxnet,vikingMei/mxnet,apaleyes/mxnet,yajiedesign/mxnet,wangyum/mxnet,ZihengJiang/mxnet,TuSimple/mxnet,navrasio/mxnet,coder-james/mxnet,wangyum/mxnet,lxn2/mxnet,leezu/mxnet,lxn2/mxnet,kevinthesun/mxnet,sxjscience/mxnet,rishita/mxnet,arikpoz/mxnet,zhreshold/mxnet,navrasio/mxnet,Guneet-Dhillon/mxnet,apaleyes/mxnet,likelyzhao/mxnet,apaleyes/mxnet,Mega-DatA-Lab/mxnet,stefanhenneking/mxnet,ykim362/mxnet,crazy-cat/incubator-mxnet,EvanzzzZ/mxnet,yuruofeifei/mxnet,fullfanta/mxnet,Ldpe2G/mxnet,formath/mxnet,yajiedesign/mxnet,jiajiechen/mxnet,rahul003/mxnet,larroy/mxnet,Ldpe2G/mxnet,sxjscience/mxnet,pluskid/mxnet,nicklhy/mxnet,precedenceguo/mxnet,stefanhenneking/mxnet,hpi-xnor/BMXNet,Northrend/mxnet,szha/mxnet,DR08/mxnet,indhub/mxnet,rahul003/mxnet,nicklhy/mxnet,indhub/mxnet,kevinthesun/mxnet,dmlc/mxnet,eric-haibin-lin/mxnet,arank/mxnet,likelyzhao/mxnet,dmlc/mxnet,yajiedesign/mxnet,jamesliu/mxnet,dmlc/mxnet,rishita/mxnet,yuruofeifei/mxnet,solin319/incubator-mxnet,TuSimple/mxnet,ForkedReposBak/mxnet,arikpoz/mxnet,ykim362/mxnet,arikpoz/mxnet,nicklhy/mxnet,thirdwing/mxnet,piiswrong/mxnet,ShownX/incubator-mxnet,Guneet-Dhillon/mxnet,apaleyes/mxnet,sxjscience/mxnet,rahul003/mxnet,zhreshold/mxnet,CodingCat/mxnet,jamesliu/mxnet,Prasad9/incubator-mxnet,mbaijal/incubator-mxnet,Mega-DatA-Lab/mxnet,zhreshold/mxnet,arank/mxnet,sergeykolychev/mxnet,weleen/mxnet,xcgoner/dist-mxnet,Northrend/mxnet,stefanhenneking/mxnet,luoyetx/mxnet,fullfanta/mxnet,mbaijal/incubator-mxnet,dmlc/mxnet,rishita/mxnet,xcgoner/dist-mxnet,reminisce/mxnet,TuSimple/mxnet,leezu/mxnet,reminisce/mxnet,kevinthesun/mxnet,leezu/mxnet,likelyzhao/mxnet,crazy-cat/incubator-mxnet,madjam/mxnet,eric-haibin-lin/mxnet,ForkedReposBak/mxnet,kkk669/mxnet,xcgoner/dist-mxnet,gautamkmr/incubator-mxnet,Northrend/mxnet,hotpxl/mxnet,precedenceguo/mxnet,kevinthesun/mxnet,ShownX/incubator-mxnet,CodingCat/mxnet,indhub/mxnet,larroy/mxnet,luoyetx/mxnet,gautamkmr/incubator-mxnet,ykim362/mxnet,mbaijal/incubator-mxnet,Prasad9/incubator-mxnet,szha/mxnet,reminisce/mxnet,hesseltuinhof/mxnet,danithaca/mxnet,formath/mxnet,coder-james/mxnet,szha/mxnet,leezu/mxnet,jiajiechen/mxnet,LinkHS/incubator-mxnet,hesseltuinhof/mxnet,navrasio/mxnet,zhreshold/mxnet,jiajiechen/mxnet,tlby/mxnet,larroy/mxnet,yuruofeifei/mxnet,precedenceguo/mxnet,arank/mxnet,fullfanta/mxnet,coder-james/mxnet,eric-haibin-lin/mxnet,Mega-DatA-Lab/mxnet,Mega-DatA-Lab/mxnet,likelyzhao/mxnet,DR08/mxnet,saurabh3949/mxnet,ptrendx/mxnet,apaleyes/mxnet,luoyetx/mxnet,pluskid/mxnet,wangyum/mxnet,xcgoner/dist-mxnet,leezu/mxnet,CodingCat/mxnet,kevinthesun/mxnet,fullfanta/mxnet,weleen/mxnet,tornadomeet/mxnet,arikpoz/mxnet,jermainewang/mxnet,tornadomeet/mxnet,rishita/mxnet,ptrendx/mxnet,xcgoner/dist-mxnet,eric-haibin-lin/mxnet,smolix/incubator-mxnet,kkk669/mxnet,ZihengJiang/mxnet,ZihengJiang/mxnet,zhreshold/mxnet,hotpxl/mxnet,Ldpe2G/mxnet,antoan2/incubator-mxnet,tlby/mxnet,tlby/mxnet,zhreshold/mxnet,ShownX/incubator-mxnet,arikpoz/mxnet,kkk669/mxnet,formath/mxnet,mbaijal/incubator-mxnet,luoyetx/mxnet,LinkHS/incubator-mxnet,reminisce/mxnet,DR08/mxnet,wangyum/mxnet,pluskid/mxnet,ZihengJiang/mxnet,reminisce/mxnet,vikingMei/mxnet,EvanzzzZ/mxnet,formath/mxnet,szha/mxnet,ykim362/mxnet,hotpxl/mxnet,hesseltuinhof/mxnet,nicklhy/mxnet,DR08/mxnet,nicklhy/mxnet,ykim362/mxnet,jermainewang/mxnet,lxn2/mxnet,coder-james/mxnet,tornadomeet/mxnet,kevinthesun/mxnet,wangyum/mxnet,Northrend/mxnet,jermainewang/mxnet,apache/incubator-mxnet,hesseltuinhof/mxnet,saurabh3949/mxnet,dmlc/mxnet,crazy-cat/incubator-mxnet,sxjscience/mxnet,madjam/mxnet,Guneet-Dhillon/mxnet,jennyzhang0215/incubator-mxnet,ShownX/incubator-mxnet,dmlc/mxnet,smolix/incubator-mxnet,gautamkmr/incubator-mxnet,stefanhenneking/mxnet,LinkHS/incubator-mxnet,solin319/incubator-mxnet,rahul003/mxnet,Northrend/mxnet,jiajiechen/mxnet,mbaijal/incubator-mxnet,pluskid/mxnet,formath/mxnet,CodingCat/mxnet,indhub/mxnet,xcgoner/dist-mxnet,DR08/mxnet,weleen/mxnet,piiswrong/mxnet,Prasad9/incubator-mxnet,hpi-xnor/BMXNet,tlby/mxnet,madjam/mxnet,apaleyes/mxnet,ykim362/mxnet,hpi-xnor/BMXNet,jamesliu/mxnet,sxjscience/mxnet,apache/incubator-mxnet,arikpoz/mxnet,antoan2/incubator-mxnet,thirdwing/mxnet,navrasio/mxnet,arank/mxnet,pluskid/mxnet,hesseltuinhof/mxnet,DR08/mxnet,larroy/mxnet,stefanhenneking/mxnet,indhub/mxnet,jermainewang/mxnet,rishita/mxnet,ptrendx/mxnet,DR08/mxnet,ShownX/incubator-mxnet,mbaijal/incubator-mxnet,yuruofeifei/mxnet,ZihengJiang/mxnet,TuSimple/mxnet,Northrend/mxnet,ptrendx/mxnet,ShownX/incubator-mxnet,yuruofeifei/mxnet,TuSimple/mxnet,rishita/mxnet,rishita/mxnet,sergeykolychev/mxnet,arank/mxnet,solin319/incubator-mxnet,Mega-DatA-Lab/mxnet,stefanhenneking/mxnet,jamesliu/mxnet,likelyzhao/mxnet,larroy/mxnet,antoan2/incubator-mxnet,reminisce/mxnet,leezu/mxnet,EvanzzzZ/mxnet,piiswrong/mxnet,madjam/mxnet,jamesliu/mxnet,antoan2/incubator-mxnet,Prasad9/incubator-mxnet,hotpxl/mxnet,ZihengJiang/mxnet,danithaca/mxnet,reminisce/mxnet,formath/mxnet,saurabh3949/mxnet,ptrendx/mxnet,pluskid/mxnet,szha/mxnet,sergeykolychev/mxnet,thirdwing/mxnet,CodingCat/mxnet,piiswrong/mxnet,jennyzhang0215/incubator-mxnet,navrasio/mxnet,Mega-DatA-Lab/mxnet,antoan2/incubator-mxnet,precedenceguo/mxnet,precedenceguo/mxnet,weleen/mxnet,solin319/incubator-mxnet,kkk669/mxnet,navrasio/mxnet,vikingMei/mxnet,vikingMei/mxnet,smolix/incubator-mxnet,saurabh3949/mxnet,tornadomeet/mxnet,ShownX/incubator-mxnet,hotpxl/mxnet,LinkHS/incubator-mxnet,TuSimple/mxnet,mbaijal/incubator-mxnet,DickJC123/mxnet,saurabh3949/mxnet,wangyum/mxnet,gautamkmr/incubator-mxnet,yuruofeifei/mxnet,LinkHS/incubator-mxnet,pluskid/mxnet,lxn2/mxnet,tlby/mxnet,madjam/mxnet,weleen/mxnet,reminisce/mxnet,indhub/mxnet,luoyetx/mxnet,Prasad9/incubator-mxnet,Ldpe2G/mxnet,coder-james/mxnet,lxn2/mxnet,zhreshold/mxnet,sxjscience/mxnet,smolix/incubator-mxnet,ForkedReposBak/mxnet,larroy/mxnet,szha/mxnet,hpi-xnor/BMXNet,yuruofeifei/mxnet,hesseltuinhof/mxnet,antoan2/incubator-mxnet,CodingCat/mxnet,reminisce/mxnet,ptrendx/mxnet,coder-james/mxnet,hpi-xnor/BMXNet,leezu/mxnet,madjam/mxnet,yuruofeifei/mxnet,ShownX/incubator-mxnet,hpi-xnor/BMXNet,solin319/incubator-mxnet,hpi-xnor/BMXNet,eric-haibin-lin/mxnet,thirdwing/mxnet,DickJC123/mxnet,leezu/mxnet,saurabh3949/mxnet,crazy-cat/incubator-mxnet,sergeykolychev/mxnet,CodingCat/mxnet,danithaca/mxnet,ForkedReposBak/mxnet,lxn2/mxnet,crazy-cat/incubator-mxnet,Northrend/mxnet,ForkedReposBak/mxnet,jennyzhang0215/incubator-mxnet,DickJC123/mxnet,arikpoz/mxnet,vikingMei/mxnet,rahul003/mxnet,ZihengJiang/mxnet,jermainewang/mxnet,stefanhenneking/mxnet,danithaca/mxnet,kevinthesun/mxnet,solin319/incubator-mxnet,navrasio/mxnet,thirdwing/mxnet,likelyzhao/mxnet,tornadomeet/mxnet,indhub/mxnet,fullfanta/mxnet,fullfanta/mxnet,jennyzhang0215/incubator-mxnet,arank/mxnet,solin319/incubator-mxnet,precedenceguo/mxnet,piiswrong/mxnet,Mega-DatA-Lab/mxnet,ZihengJiang/mxnet,vikingMei/mxnet,larroy/mxnet,luoyetx/mxnet,formath/mxnet,Guneet-Dhillon/mxnet,lxn2/mxnet,rahul003/mxnet,apache/incubator-mxnet,jamesliu/mxnet,TuSimple/mxnet,ZihengJiang/mxnet,szha/mxnet,jermainewang/mxnet,fullfanta/mxnet,sergeykolychev/mxnet,hesseltuinhof/mxnet,hpi-xnor/BMXNet,danithaca/mxnet,hesseltuinhof/mxnet,madjam/mxnet,larroy/mxnet,EvanzzzZ/mxnet,likelyzhao/mxnet,kevinthesun/mxnet,yuruofeifei/mxnet,jermainewang/mxnet,Guneet-Dhillon/mxnet,tlby/mxnet,Northrend/mxnet,eric-haibin-lin/mxnet,formath/mxnet,szha/mxnet,precedenceguo/mxnet,sxjscience/mxnet,arank/mxnet,gautamkmr/incubator-mxnet,jennyzhang0215/incubator-mxnet,smolix/incubator-mxnet,Prasad9/incubator-mxnet,LinkHS/incubator-mxnet,Ldpe2G/mxnet,sergeykolychev/mxnet,rishita/mxnet,likelyzhao/mxnet,thirdwing/mxnet,leezu/mxnet,jamesliu/mxnet,apaleyes/mxnet,rishita/mxnet,kevinthesun/mxnet,CodingCat/mxnet,smolix/incubator-mxnet,weleen/mxnet,piiswrong/mxnet,weleen/mxnet,danithaca/mxnet,Guneet-Dhillon/mxnet,gautamkmr/incubator-mxnet,ptrendx/mxnet,navrasio/mxnet,piiswrong/mxnet,thirdwing/mxnet,precedenceguo/mxnet,EvanzzzZ/mxnet,Prasad9/incubator-mxnet,smolix/incubator-mxnet,jermainewang/mxnet,kkk669/mxnet,DickJC123/mxnet,sxjscience/mxnet,likelyzhao/mxnet,tlby/mxnet,hesseltuinhof/mxnet,yajiedesign/mxnet,tlby/mxnet,piiswrong/mxnet,crazy-cat/incubator-mxnet,gautamkmr/incubator-mxnet,saurabh3949/mxnet,ForkedReposBak/mxnet,indhub/mxnet,saurabh3949/mxnet,tornadomeet/mxnet,hotpxl/mxnet,piiswrong/mxnet,hotpxl/mxnet,arikpoz/mxnet,ForkedReposBak/mxnet,saurabh3949/mxnet,tornadomeet/mxnet,tlby/mxnet,indhub/mxnet,sergeykolychev/mxnet,wangyum/mxnet,jennyzhang0215/incubator-mxnet,arikpoz/mxnet,eric-haibin-lin/mxnet,Prasad9/incubator-mxnet,jamesliu/mxnet,crazy-cat/incubator-mxnet,dmlc/mxnet,rahul003/mxnet,tlby/mxnet,xcgoner/dist-mxnet,jermainewang/mxnet,reminisce/mxnet,Guneet-Dhillon/mxnet,stefanhenneking/mxnet,vikingMei/mxnet,luoyetx/mxnet,Ldpe2G/mxnet,ForkedReposBak/mxnet,solin319/incubator-mxnet,Mega-DatA-Lab/mxnet,TuSimple/mxnet,xcgoner/dist-mxnet,arank/mxnet,Ldpe2G/mxnet,LinkHS/incubator-mxnet,wangyum/mxnet,TuSimple/mxnet,LinkHS/incubator-mxnet,sergeykolychev/mxnet,lxn2/mxnet,jamesliu/mxnet,rahul003/mxnet,coder-james/mxnet,nicklhy/mxnet,arank/mxnet,madjam/mxnet,ptrendx/mxnet,Prasad9/incubator-mxnet,DR08/mxnet,coder-james/mxnet,apaleyes/mxnet,fullfanta/mxnet,yajiedesign/mxnet,vikingMei/mxnet,yajiedesign/mxnet,lxn2/mxnet,jiajiechen/mxnet,jiajiechen/mxnet,EvanzzzZ/mxnet,luoyetx/mxnet,zhreshold/mxnet,jiajiechen/mxnet,ForkedReposBak/mxnet,zhreshold/mxnet,weleen/mxnet,luoyetx/mxnet,tornadomeet/mxnet,apaleyes/mxnet,wangyum/mxnet,larroy/mxnet,sergeykolychev/mxnet,danithaca/mxnet,xcgoner/dist-mxnet,kkk669/mxnet,pluskid/mxnet,mbaijal/incubator-mxnet,yajiedesign/mxnet,hotpxl/mxnet,Northrend/mxnet,szha/mxnet,jennyzhang0215/incubator-mxnet,Mega-DatA-Lab/mxnet,yajiedesign/mxnet,TuSimple/mxnet,jennyzhang0215/incubator-mxnet,ykim362/mxnet,thirdwing/mxnet,apache/incubator-mxnet,Guneet-Dhillon/mxnet,thirdwing/mxnet,crazy-cat/incubator-mxnet,weleen/mxnet,formath/mxnet,CodingCat/mxnet,antoan2/incubator-mxnet,fullfanta/mxnet,hotpxl/mxnet,smolix/incubator-mxnet,ptrendx/mxnet,gautamkmr/incubator-mxnet,smolix/incubator-mxnet,danithaca/mxnet,navrasio/mxnet,jiajiechen/mxnet,madjam/mxnet,coder-james/mxnet,crazy-cat/incubator-mxnet,EvanzzzZ/mxnet,nicklhy/mxnet,ykim362/mxnet,solin319/incubator-mxnet,stefanhenneking/mxnet,tornadomeet/mxnet,precedenceguo/mxnet,DR08/mxnet,Ldpe2G/mxnet,antoan2/incubator-mxnet,dmlc/mxnet,eric-haibin-lin/mxnet,vikingMei/mxnet