I don’t think GitHub actually labels #2 as a fork, but traditionally that’s been the meaning. They just needed a word to show that the repo is not original and

I don’t think GitHub actually labels #2 as a fork, but traditionally that’s been the meaning. They just needed a word to show that the repo is not original and is tied to an upstream repo. For example, when I wanted to “fork” a project[0] that was no longer maintained and not accepting PRs, I actually had to contact GitHub to “unlink” my repo so that I my repo could be standalone and utilize all the features on GitHub (can’t remember which features off the top of my head). [0]: https://github.com/styfle/geoslack https://github.com/styfle/geoslack