If an upstream maintainer prioritizes a clean commit log in pull requests, to enable merge-commits (like I do), then if the maintainer wants to fix formatting,

If an upstream maintainer prioritizes a clean commit log in pull requests, to enable merge-commits (like I do), then if the maintainer wants to fix formatting, they have to amend commits by the PR author and force-push to the PR author's branch. I'm not sure if "Allow edits by maintainers" allows force-pushing or not, and I don't know if it's considered bad manners to force-push to a feature branch you don't own, in someone else's repository.