Twisted Fate and Statik Shiv Bug

I was playing Attack Damage Twisted Fate earlier and Statik Shiv doens't apply when Twisted Fate's Basic attacks are empowered with his W...

To re-create this bug you must first

1. Use TF's W
2. Have Statik Shiv
3. Basic attack with Statik shiv While TF's W is active.

I'm not sure why it does this , but I hope it can be fixed. Sincerely, FazeClan1