To add to the mystery, the company that the redditor claims posted these has a private Vimeo page with this one upload publicly visible.
It’s from the deleted scene with Luke and 3po.
They also have these 3:
https://vimeo.com/1114746661
https://vimeo.com/1114758654?from=outro-local
https://vimeo.com/1114770007?from=outro-local