Oh I didnt know that. But there is still a problem, I planted grass and twigs near my home. And I am concern other people will plant/build stuff around home as well. It will burn too.
When I devide big bat skin stack (9 skins) into two stacks (using cltr), I am getting pig skin. The big bat skin changes to pig skin also when I merge 2 stacks (big bat -> pig skin)