> What's up with the fix commits?

They shouldn't show up in the commit history. In a PR, you merge them in the commit that they actually fix. Otherwise when you use git blame to get the context of why a line of code was changed, all you see is a useless "fixup" message that is worse than having nothing.

Anyone can do better than a fixup commit. And doing metter means merging them into the actual commits that are fixed.