Zed Gets Massive AD Bonus After Casting W

This is a pretty ridiculous bug. I've reproduced it each time I've tried to, with it rarely not triggering, but is nearly 99% reproduceable. In the clip above, I demonstrate fighting baron 1v1, at max level with a total AD of 613. However, after casting Zed's W, it spikes right up to 1355. Of course, I did grab the highest AD items, where later on with mercurial scimitar, I could reach 1673, an utterly bullshit amount Jhin could only dream of. I could easily provide the whole match (Customs) if I were so asked.

NA Secret Kitty found this bug yesterday, and posted here: http://boards.na.leagueoflegends.com/en/c/bug-report/Ep72mlmN-disable-zed-game-changing-bug-all-ability-doing-2x-damage?comment=000200000000

This needs to be addressed quickly.