Infinite Vel'Koz Ults

Probably related to this: https://www.reddit.com/r/leagueoflegends/comments/406un6/so_theres_a_velkoz_bug_that_lets_you_ult_twice_in/

Player was possibly using auto dodge scripts, evidence here: https://www.youtube.com/watch?v=xHY96km2TIc&feature=youtu.be (friend who was spectating created this video, missed a couple instances as well)

I am guessing he is using the script to consistently perform this bug. By the way, he said it's a known bug and he "only did it once" so he was well aware that he was exploiting this.