« SF x TK: Desk Discovers Infinite Combo with Rufus »

Desk posted up yet another Street Fighter x Tekken video, this time demonstrating an infinite combo with Rufus. Though there are no notes on how to perform this infinite, he links to a previous video which showcases a glitchy combo featuring Ryu and Akuma. It's probably something along the same lines but far less obvious as to what casues it. 

Any idea as to how to pull this off?