Fix new remote updater sending all 0 param / grad to pserver
Fix new remote updater sending all 0 param / grad to pserver

putcn/Paddle,reyoung/Paddle,pengli09/Paddle,tensor-tang/Paddle,reyoung/Paddle,Canpio/Paddle,baidu/Paddle,baidu/Paddle,lcy-seso/Paddle,chengduoZH/Paddle,Canpio/Paddle,luotao1/Paddle,baidu/Paddle,jacquesqiao/Paddle,reyoung/Paddle,chengduoZH/Paddle,QiJune/Paddle,putcn/Paddle,pengli09/Paddle,QiJune/Paddle,PaddlePaddle/Paddle,luotao1/Paddle,chengduoZH/Paddle,QiJune/Paddle,lcy-seso/Paddle,pkuyym/Paddle,pkuyym/Paddle,pkuyym/Paddle,luotao1/Paddle,Canpio/Paddle,luotao1/Paddle,pengli09/Paddle,putcn/Paddle,Canpio/Paddle,lcy-seso/Paddle,tensor-tang/Paddle,reyoung/Paddle,Canpio/Paddle,pengli09/Paddle,QiJune/Paddle,pengli09/Paddle,reyoung/Paddle,jacquesqiao/Paddle,Canpio/Paddle,luotao1/Paddle,putcn/Paddle,pengli09/Paddle,PaddlePaddle/Paddle,pkuyym/Paddle,PaddlePaddle/Paddle,luotao1/Paddle,tensor-tang/Paddle,pkuyym/Paddle,pengli09/Paddle,PaddlePaddle/Paddle,baidu/Paddle,PaddlePaddle/Paddle,lcy-seso/Paddle,chengduoZH/Paddle,lcy-seso/Paddle,luotao1/Paddle,jacquesqiao/Paddle,jacquesqiao/Paddle,QiJune/Paddle,baidu/Paddle,tensor-tang/Paddle,chengduoZH/Paddle,putcn/Paddle,pkuyym/Paddle,tensor-tang/Paddle,Canpio/Paddle,Canpio/Paddle,putcn/Paddle,PaddlePaddle/Paddle,pengli09/Paddle,reyoung/Paddle,jacquesqiao/Paddle,jacquesqiao/Paddle,lcy-seso/Paddle,QiJune/Paddle,PaddlePaddle/Paddle