That's not a hop change...it's just what it looks like: a crappy kip, lay on the bar, turn your hands around and do a front giant. So bad.
Sadly, it's not worth doing a hop-change because it has such a low value in the code, that it is better to take a deduction for doing an "uncharacteristic element" than try to do a worthless hop-change, because it isn't going to count anyway.
I think that deduction for "stupid stuff" like that hand change, or standing on the bar, etc. should be a more significant deduction. Letting that slip really cheapens a bar routine.