As long as the original author has clicked the checkbox in the bottom right:
If that box is checked, then you can push back to the original branch without needing to add a remote by using:
git push [email protected]:user/repo local_branch_name:remote_branch_name
This is particularly useful if you're using a tool like hub where you can check out a pull request without needing to add a remote.
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…