FOSS gamedev and creative worlds

I tried the latest minetest build and saw this commit https://github.com/minetest/minetest/commit/0279f32db742f06d24a9d01c46f7d70c5e570eb2. I wonder why the two features has been removed from the game? Did anyone know the reason?

The author, who is a core dev of freeminer, removed them because ... he wrote something like 'unfinished, unpopular', but i believe those are still in freeminer which is a more suitable place for testing and improving experimental stuff like that.

Thank you for the answer. Too bad, I was quite happy with it, especially finite liquid.

I really like the concept of the "finite" liquid. But it was very buggy and nothing nice to look at. Hopefully we will get this dynamic liquid* back in some other form.

*I call it dynamic as opposite to static, because in the traditional physics the liquid is fixed to a node and does not move, in dynamic liquid it flows. Also what was called finite liquid was not finite.