Fix ImageNet example for conflicts of parameter-shape placeholder and model copy
Fix ImageNet example for conflicts of parameter-shape placeholder and model copy

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