This is about how to split a GitHub pull request, following a real in-the-wild example.
So it happened that I once wanted to fix a bug (#832) on the shelljs repository.
I forked the repository, cloned it and created a new branch called ln-directory-dest. I fixed the bug, created a pull request, and implemented initial review feedback.
At this point, I had added the commits A, B, C, D, E and [F](https://github.com/Loilo/shelljs/commit/946ab48bf5cf9c8aac03407