[GAMEPLAY] Lee Sin W bug, ability lost with no benefits gained

There is a bug with Lee Sins W when you attempt to cast it on something right before it dies. The ability goes on the full, non champion reduced cooldown (even when targeting a champion), you lose the 50 energy required to cast it, and you do not dash or gain a shield like you would in a self cast scenario. Instead, it acts as if you dashed to the target while keeping you in place, even if the target is a champion. Finally, you are unable to use the recast of the W, Iron Will, because it acts as if your initial Safeguard never happened. In this clip i tried to w to my melee minion near the cho.

Steps to reproduce:

1. Cast w on a target a split second before it dies
2. Cry

This has a 10/10 reproduction rate when timed correctly under the right circumstances. I will post another example in the comments.