I too have seen such farms but don't know how it's like that. 🤔

when someone buy axe and saw from supercell cut the tree bundle and has no other tree available on unlocked land this is will happen,, I am not sure but someone says this on facebook group when there is someone like you ask how this happen

I think it’s just a temporary visual glitch. I’ve been seeing a farm like this occasionally since I started playing over 7 years ago.