Issue: "Dive" into distraction-free edit mode forced my thread to be submitted

I don't know why, and I don't know what that button does but I was curious so I clicked it, and it submitted the post I was in the middle of writting, and I couldn't even edit it because it was waiting for moderation. It didn't even had a title and it got submitted

Yeah that button in the editor doesn't work, and from my current knowledge, it's not being worked on either. Definitely should be removed.