edit/writer: When switching attr, clear attr first.
edit/writer: When switching attr, clear attr first.

elves/elvish,beni55/elvish,elves/elvish,elves/elvish,elves/elvish,CodyGuo/elvish,ke7ofi/elvish,elves/elvish,beni55/elvish,ke7ofi/elvish,CodyGuo/elvish