fix the layer name error when stacking RecurrentGroups * the last layer in the stack already has all the suffixes
fix the layer name error when stacking RecurrentGroups
* the last layer in the stack already has all the suffixes

lcy-seso/Paddle,dayhaha/Paddle,hedaoyuan/Paddle,beckett1124/Paddle,dayhaha/Paddle,pengli09/Paddle,livc/Paddle,comeonfox/Paddle,QiJune/Paddle,wen-bo-yang/Paddle,chengduoZH/Paddle,Canpio/Paddle,baidu/Paddle,PaddlePaddle/Paddle,cxysteven/Paddle,PaddlePaddle/Paddle,jacquesqiao/Paddle,Canpio/Paddle,tensor-tang/Paddle,chengduoZH/Paddle,zuowang/Paddle,beckett1124/Paddle,putcn/Paddle,livc/Paddle,beckett1124/Paddle,tensor-tang/Paddle,gangliao/Paddle,luotao1/Paddle,Canpio/Paddle,zhouxiao-coder/Paddle,lispc/Paddle,dayhaha/Paddle,Canpio/Paddle,wen-bo-yang/Paddle,jacquesqiao/Paddle,baidu/Paddle,lispc/Paddle,lcy-seso/Paddle,jacquesqiao/Paddle,pkuyym/Paddle,PaddlePaddle/Paddle,Canpio/Paddle,luotao1/Paddle,zuowang/Paddle,lcy-seso/Paddle,hedaoyuan/Paddle,helinwang/Paddle,pkuyym/Paddle,reyoung/Paddle,QiJune/Paddle,pkuyym/Paddle,pengli09/Paddle,tensor-tang/Paddle,yu239/Paddle,hedaoyuan/Paddle,lispc/Paddle,qingqing01/Paddle,pengli09/Paddle,hedaoyuan/Paddle,tensor-tang/Paddle,lcy-seso/Paddle,zuowang/Paddle,helinwang/Paddle,pengli09/Paddle,zhouxiao-coder/Paddle,qingqing01/Paddle,PaddlePaddle/Paddle,lispc/Paddle,helinwang/Paddle,hedaoyuan/Paddle,alvations/Paddle,reyoung/Paddle,dayhaha/Paddle,zhouxiao-coder/Paddle,dayhaha/Paddle,emailweixu/Paddle,pengli09/Paddle,gangliao/Paddle,comeonfox/Paddle,emailweixu/Paddle,PaddlePaddle/Paddle,lispc/Paddle,chengduoZH/Paddle,zhouxiao-coder/Paddle,alvations/Paddle,luotao1/Paddle,cxysteven/Paddle,pengli09/Paddle,livc/Paddle,luotao1/Paddle,alvations/Paddle,wen-bo-yang/Paddle,PaddlePaddle/Paddle,livc/Paddle,yu239/Paddle,wen-bo-yang/Paddle,livc/Paddle,qingqing01/Paddle,hedaoyuan/Paddle,chengduoZH/Paddle,yu239/Paddle,qingqing01/Paddle,tensor-tang/Paddle,gangliao/Paddle,wen-bo-yang/Paddle,helinwang/Paddle,luotao1/Paddle,beckett1124/Paddle,comeonfox/Paddle,livc/Paddle,gangliao/Paddle,cxysteven/Paddle,comeonfox/Paddle,baidu/Paddle,gangliao/Paddle,alvations/Paddle,lcy-seso/Paddle,dayhaha/Paddle,jacquesqiao/Paddle,yu239/Paddle,luotao1/Paddle,chengduoZH/Paddle,yu239/Paddle,beckett1124/Paddle,hedaoyuan/Paddle,emailweixu/Paddle,lispc/Paddle,baidu/Paddle,QiJune/Paddle,reyoung/Paddle,emailweixu/Paddle,wen-bo-yang/Paddle,beckett1124/Paddle,hedaoyuan/Paddle,emailweixu/Paddle,putcn/Paddle,putcn/Paddle,wen-bo-yang/Paddle,cxysteven/Paddle,emailweixu/Paddle,livc/Paddle,helinwang/Paddle,alvations/Paddle,helinwang/Paddle,QiJune/Paddle,helinwang/Paddle,pkuyym/Paddle,putcn/Paddle,jacquesqiao/Paddle,cxysteven/Paddle,yu239/Paddle,luotao1/Paddle,Canpio/Paddle,pengli09/Paddle,reyoung/Paddle,gangliao/Paddle,zuowang/Paddle,reyoung/Paddle,Canpio/Paddle,zuowang/Paddle,lcy-seso/Paddle,pkuyym/Paddle,dayhaha/Paddle,zhouxiao-coder/Paddle,reyoung/Paddle,jacquesqiao/Paddle,gangliao/Paddle,zhouxiao-coder/Paddle,qingqing01/Paddle,zhouxiao-coder/Paddle,comeonfox/Paddle,yu239/Paddle,lispc/Paddle,cxysteven/Paddle,cxysteven/Paddle,pengli09/Paddle,pkuyym/Paddle,QiJune/Paddle,emailweixu/Paddle,putcn/Paddle,PaddlePaddle/Paddle,QiJune/Paddle,Canpio/Paddle,lispc/Paddle,baidu/Paddle,putcn/Paddle,beckett1124/Paddle,yu239/Paddle