Karma Shield not giving assists when on Shaco's Clone

This is a really simple bug I encountered while in URF today. I would be shielding Shaco's clone when it would suicide dive champs and turrets, for the movespeed and the shield. However, I would not get an assist. If I would shield Shaco himself, I would get one, as the gameplay always was.

I am pretty sure this is a minor oversight on mechanics and an easy fix, might want to check Morde's Ult, Yorick's, etc.