HOW-TO:Update a pull request to an official addon repository on GitHub
A pull request (PR) to an official addon repository (for scripts, plugins or other) on GitHub must have exactly one commit. This is necessary to keep clean commit history in the repo with each commit representing a single addon addition or update. However, you may be asked to make some changes into your PR before it will be submitted. The following procedure allows you to update your PR without creating a new commit:
1. Make all necessary changes in your addon PR.
2. Commit your changes to the PR branch using the following commands:
git add . git commit -a --amend --no-edit
3. Push your changes to GitHub. Since you have rewritten the commit history you need to use
git push -f
Now you PR will be updated and you still have one commit in the PR.