Backups include not only the complete repository with its branches, but also the associated metadata. That’s a great advantage over other backup solutions or local copies of your git repositories because these do not include metadata, such as issues, milestones and the like.
The metadata is not part of git versioning and therefore cannot be reverted or restored if something goes wrong. That is why we include all data that is available via the GitHub API. This currently includes:
|Pull Requests||Pull requests are included in the backup but can only be restored as issues due to limitations of the GitHub API.|
|Wiki||Full backup of all wiki branches. Due to limitations of the GitHub API it can't be restored automatically. However a manual restore is possible.|
Having backups of your metadata is important, especially if you use metadata for project management. They preserve valuable information that has been collected inside of issues or pull-requests.
This information can also be found in the FAQ.