NO. Nothing is gone after commit. You just don't see it. Make a git log --reflog --all and you will see all the commits you made (or rebase made) in the last 3

NO. Nothing is gone after commit. You just don't see it. Make a git log --reflog --all and you will see all the commits you made (or rebase made) in the last 3 months. You can than rescucitate an old branch by simply putting a branch name on it with git branch newname <old sha1>