> > Was it an accident? Did it serve an actual purpose? I might never know.

> You're never going to get that level of detail.

I have! I once found a bug that was caused by a typo in a linting commit, something obviously unintentional. If it was squashed it would have taken a lot longer to figure that out.

I also recently found issues in a common python 2 and 3 library where the code was broken in py2to3 and first-run-of-black commits. More places where it was obvious how and why the code was wrong because the formatting was a separate commit from the feature.