Shaco bug? Ulting Inhib.

As all of us Shaco main's know you can press either R or Alt+Right Click to control your clone. Although I'm pretty sure most of you don't alt+right click cause then you can't really move yourself. For some odd reason when Shaco ults his clone can attack pretty much everything... except nexus and inhibs. At least that's what I thought cause I never Alt+Right Click. You can only attack inhib and nexus with Alt+Right Clicking and no matter how hard you try you can't press R and make it work because it doesn't work, it's bugged or something. Just thought I'd bring attention to this cause it'd make it easier in the future to just be able to press R for it to do these things.