This might be anywhere from "by-design" to a non-issue, but I thought I'd mention it:
When I posted this answer (i.e. after I clicked "Post Your Answer"), the "New answers have been posted. Load new answers" notification briefly appeared before the page was reloaded. Since, as random confirmed, there where no other answers on that question, it must have been my own answer that triggered the notification.
Side note: I was tempted to title this post "The quicker-than-his-own-shadow problem"