[GAMEPLAY] Sivir's E (spell Sheild) is Broke still not fixed

So I was laning with my duo in a ranked game for my placements. We're were playing some Sivir Naut, Totally not because of the new skins coming out or anything :P. We were matched up against a Ez and janna. The laning was intense and prolonged and I just survived a gank due to great map awareness and warding on her part. I needed a few more bits of gold to get a bf sword but I was out of mana. So I baited outta Ezreal Q and put up my shield, it popped and Sivir did the voice thing and I gained mana ... and also gave first blood. And just to test it I let myself get hit over and over and yes very confirmed and i did test in it a custom game

How to repeat just q a sivir as ez

TL;DR Sivir's E isn't blocking Ez's Q damage but still gaining mana