Zed W-Q-W bug [GAMEPLAY]

Whenever I shadow(W) then shuriken(Q) then W immediately again it doubles the q at where I first was (Before I w'd to shadow)
It seems you can do it anytime if you immediately go to your shadow after your q
Whenever I shadow(W) then shuriken(Q) then W immediately again it doubles the q at where I first was (Before I w'd to shadow)