Shaco clone can't hurt poppy when she ults shaco.
I would imagine that wukongs clone doesn't hurt her either if she ults wukong. Not too big of a bug seeing as neither champ is too big of a popularity right now. But it did get me killed against her multiple times cause I couldn't dish out damage on her with my clone. The clone IS technically a spell that shaco casts. So there's no reason it shouldn't harm poppy if she ults shaco. It's also an easy way for poppy to figure out which one is the real one since She can't ult the clone.