Can I modify someone else's pull request and push it back in its branch?

Question

GitHub explains you can fork, modify, commit, push and trigger a pull request. They also explain that you can still modify, commit, push and the request is updated on the website.

I would like to know if it is possible to do the exact same thing but not being the author of the fork? I am the owner of a repo with pull requests I would like to correct myself but still discuss afterwards... I was trying to push my changes into the author's repo (thinking some right access would be calculated) but the access is denied.

Answer 1

When creating a pull request (PR) on GitHub, you can select the option that maintainers are allowed to commit changes to your PR. You can also do this after the PR is already created: In the detail view of the PR, on the lower right, under "Unsubscribe", "participants". So if you want to commit to a PR of someone else on a GitHub repository you own: Ask them to give you this permission.

From the GitHub help pages: "Only pull request creators can give upstream repository maintainers, or those with push access to the upstream repository, permission to make commits to their pull request's compare branch." (Allowing changes to a pull request branch created from a fork)

Unfortunately, as far as I know, in order for someone to commit to the PR, you would have to give them write access to the repository and can't just selectively give them write access to the PR.