I saw this skill at Worlds … Kip to V-Cross … but did not catch the name of the gymnast.
It was Fede Molinari from Argentina. Sounds like they’ve submitted it to FIG for consideration. Update: One commenter reports that Sejima Ryuzo competed this last year at Japan Juniors. You need to do it at Worlds or Olympics for FIG “naming” consideration, though.
Check an interview in Spanish on gimnasialatina.com