fix shape normalization
fix shape normalization

rezoo/chainer,wkentaro/chainer,anaruse/chainer,okuta/chainer,jnishi/chainer,okuta/chainer,cupy/cupy,hvy/chainer,ktnyt/chainer,chainer/chainer,wkentaro/chainer,chainer/chainer,niboshi/chainer,kiyukuta/chainer,niboshi/chainer,keisuke-umezawa/chainer,kashif/chainer,hvy/chainer,wkentaro/chainer,ktnyt/chainer,chainer/chainer,wkentaro/chainer,hvy/chainer,cupy/cupy,keisuke-umezawa/chainer,ktnyt/chainer,jnishi/chainer,jnishi/chainer,okuta/chainer,keisuke-umezawa/chainer,niboshi/chainer,delta2323/chainer,ronekko/chainer,jnishi/chainer,hvy/chainer,cupy/cupy,niboshi/chainer,cupy/cupy,tkerola/chainer,okuta/chainer,keisuke-umezawa/chainer,chainer/chainer,pfnet/chainer,ysekky/chainer,aonotas/chainer,ktnyt/chainer