It would be a wrapper: something like: * git branch hidden current * git do-the-command-here * if we call git undo, checkout the hidden branch, otherwise del

It would be a wrapper: something like: * git branch hidden current * git do-the-command-here * if we call git undo, checkout the hidden branch, otherwise delete it In practice, I think a lot of people call `git lg` often enough that they can just git reset --hard to a recent commit hash, or they manually create a just-in-case branch if they're going to do something risky/dangerous.