XRAY - F5 mode while suffocating

The previously patched xray glitch where ones head is in a block still works in F5 mode. I've made an unlisted youtube video showing it off: https://youtu.be/y0d2NCPvafs

I discovered it while watching a youtube stream at https://www.youtube.com/watch?v=DbkvQErP8XE, which means that it is publicly known by the 200,000 people who watched that stream (and probably others)