Hotfix procedure

This is a general guideline but should be followed unless there's a good reason not to. If you find a serious bug on live that needs an immediate fix:

1. Open a PR against master to fix the issue.
2. Have the PR reviewed and merged (this process might be expedited, or in some cases marked as approved by the author).
3. Create a new branch off of sf-live and chery-pick the commit from master using git cherry-pick -x <commit hash>. The -x causes Git to finish the commit message with (cherry picked from commit <commit hash>), making it easier to find the corresponding commit on the master branch.
4. Open a PR against sf-live and get it reviewed and merged.
5. Monitor the shipping process and make sure the site is working properly post shipping.

In some cases it may be necessary to ship a change to live first and then cherry-pick it to master. In this case the -x should still be used so it's possible to tell that the commits are related.