Describe the feature or problem you’d like to solve

As a maintainer, I want to be able to push easily to the fork of a contributor (if he granted permission).
We need this to help unlock contributors if they are stuck on some difficult part.

Proposed solution

gh pr checkout 123

# do local commits to unlock the contributor

gh pr push

Just discovered Hub, and found out that it had a similar feature: https://jonathanchang.org/blog/pushing-to-a-pull-request-on-github/
I think it make sense to have this on the "official" cli too?

My current workaround is:

gh pr checkout 123

# do local commits to unlock the contributor

git push [email protected]:username/projectName.git