Not that I am envious for the karma, but I wonder why this was not merged into my exactly identical submission 1 hour earlier (https://news.ycombinator.com/item?id=5749969) -- afaict there was no ?repost or similar stunt ...
Being that HN was designed to handle a metric shit ton of traffic on very little hardware, I'd imagine that it has adopted a weak consistency model for these types of things.
From the markup, that submission has a trailing slash while this one does not. This is one of few ways two URLs can differ but cannot ever point at separate resources, so more clever URL handling would have noticed it's a dup.
