I'm curious: If I were to share the same link again now, I'll be forwarded to the latest submission instead. Interestingly, this link was shared twice in the pa

I'm curious: If I were to share the same link again now, I'll be forwarded to the latest submission instead. Interestingly, this link was shared twice in the past few days (click the "past" link above - and, yes, one of the submitters was I). How, then, was it that neither of the recent submitters, including myself, were forwarded to the latest at the time, but instead new submissions were created?