Miss Fortune Ultimate (R) bug [GAMEPLAY]

In the video above to clear any possible confusion, whenever i ulted once was to show you the normal damage. Then i did the bug to show you the doubled or tripled damage. This is a bug that i found while messing around in the practice tool. I was originally trying out some different builds and as previously stated messing around. Then i thought "hey what would happen if i spammed r? and this was the result. To pull this off you need to press r with and then immediately after cancel it and press your r again (direction does not matter). if you do this correctly within a 3 second time frame ( ult time) then you will pull it off every single time without any trouble. you can get 3 ults going at the same time maximum, at least that is the highest i ever got too.