[GAMEPLAY] Jinx Q ON Auto Attacks don't complete after death

So I heard about this and decided to test it in a bot game and verified it is true.

I'm pretty sure for any ranged auto-attacker, if the projectile is in the air when the champion dies, the auto attack finishes and deals damage.

So I went Jinx, got the beginner bot Ashe to about 10 hp, let her run under tower and followed her in, then shot my Q toggled rocket at her right as the tower was about to kill me. The tower killed me when the rocket was about halfway to Ashe, and then Ashe took no damage.

This is pretty uneven / frustrating when you're expecting it to get the kill. Lots of bot lane skirmishes are incredibly close and if Jinx were to lose the skirmish that last auto attack would likely make the difference of getting a kill back in exchange. If every other adc gets that potential, why not Jinx?

I'm not sure if this happens with Q toggled OFF (minigun), but it definitely happens when it's ON (rockets). I wonder if it has something to do with 'considering the rockets to be an ability' rather than an 'auto attack' or something.

Thanks!