$ git clone -n https://src.fedoraproject.org/rpms/mksh.git /var/lib/mock/f41-build-1037649-18804/root/chroot_tmpdir/scmroot/mksh
Cloning into '/var/lib/mock/f41-build-1037649-18804/root/chroot_tmpdir/scmroot/mksh'...
$ git fetch origin 483adf34fe8b83d1e168ab99622478e6f5ee2cd8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mksh
 * [new ref]         483adf34fe8b83d1e168ab99622478e6f5ee2cd8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 483adf3 Spec file cleanup, modernization and unification