When run with `--branch` option in a repository, the input is first
expanded for the ``previous checkout syntax''
`@{-n}`. For example, `@{-1}` is a way to refer the last thing that
-was checked out using "git checkout" operation. This option should be
+was checked out using "git switch" or "git checkout" operation.
+This option should be
used by porcelains to accept this syntax anywhere a branch name is
expected, so they can act as if you typed the branch name. As an
exception note that, the ``previous checkout operation'' might result