I will get pull requests where later commits fix bugs introduced in former commits.

I generally ask people to rewrite such PRs, as I’m not going to pull known buggy commits into master, even if they are followed by fixes. That is just noise.

It might also be that some commits in the PR has changed tabs to spaces or vice versa.

I think the point was: if you have a PR with two commits, you can squash it to a single commit and force push. This will update the PR to just have the single commit. (Similarly with a rebase.)

sorbits' point was in response to:

clinta > Why do you need to rewrite? If a pull request is not completed, you can continue to push it and the PR is updated to pull the latest commit.

sorbits is saying that no, you really should rewrite your PR.

You, hayd, seem to be merely reiterating sorbits' point.