It can be necessary to fork an Action to add missing functionality or fix a problem. When this happens, it's normal to update your workflow to use your new fork that includes the fix. If a Pull Request is made to the parent repo (upstream action), this Proaction check will detect when/if that pull request is merged. If the pull request is merged and the commit from the fork is found in the parent repo, the Unfork Action check will recommend moving your workflow back off if your fork and back to the original repo. This may also trigger updates to the latest version, if there are any new commits missed.