Round-off 1/2 on, layout full
Yurchenko 1/2 on, layout full
What a trip it has been with the naming of this vault. At various times, the gymternet has futilely tried to name this vault after Khorkina, Mustafina, Pavlova, Cookie Monster, and all of them. Any attempt has been unsuccessful. As far as can be determined, Mustafina’s performance of this vault at the 2010 world championships did make her the first gymnast to have successfully completed in at a world championship or Olympic Games—typically what would have been required to get it named—but it already existed in the code of points at that stage.
Cheng Fei had long previously submitted the 1.5, so the full had to be included in the code of points as well to fill in all the appropriate spots. There was no way/need to submit it as a new skill because it was already in the code, and if you don’t submit it as a new skill, you’re not getting it named.