Can anyone explain this?

I just spent about two dozen times trying to submit the new page "Chelicerata" and finally got an edit conflict. It says that someone submitted the page while I was submitting it, but the page the other guy submitted is blank. If it were the same as what I tried to submit, then the other guy would be my previous attempt, and if it contained more text, then my previous attempt succeeded and someone else then edited it.

phma