Always back up the current version and work on a copy instead.
And remember: on-site backups are not backups. Even if you are working on a git repo, it is surprisingly easy to screw up your commit history so badly you have to burn it all down and start over, and that is not by far the worst possible disaster.
Always back up the current version and work on a copy instead.
And remember: on-site backups are not backups. Even if you are working on a git repo, it is surprisingly easy to screw up your commit history so badly you have to burn it all down and start over, and that is not by far the worst possible disaster.