$ git clone -n https://src.fedoraproject.org/rpms/nanovna-saver.git /var/lib/mock/f41-build-side-2-python-2688495-30181/root/chroot_tmpdir/scmroot/nanovna-saver
Cloning into '/var/lib/mock/f41-build-side-2-python-2688495-30181/root/chroot_tmpdir/scmroot/nanovna-saver'...
$ git fetch origin 355b634aa43ae271e74a5314b70e676e01df6e1d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/nanovna-saver
 * [new ref]         355b634aa43ae271e74a5314b70e676e01df6e1d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 355b634 convert GPLv3 license to SPDX