That was what I submitted. I don't know why it got edited.
I suspect you can edit it back right now, just like you can edit the title back if HN changes it. The automatic stuff runs only once on initial submit (AFAIK).
Good to know. I can't edit anymore. Not sure if I could edit when I first responded. It was 4 hours later.
Canonical links. HN changes it when one is found.
Or putting the lyrics of It's A Small World After All into the genome of Deinococcus radiodurans, radiation-resistant bacteria.