$ git clone -n https://src.fedoraproject.org/rpms/graphlcd-base.git /var/lib/mock/f41-build-1028389-18355/root/chroot_tmpdir/scmroot/graphlcd-base
Cloning into '/var/lib/mock/f41-build-1028389-18355/root/chroot_tmpdir/scmroot/graphlcd-base'...
$ git fetch origin c465c7fac494978e601e91cab74a0605f3ffad9f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/graphlcd-base
 * [new ref]         c465c7fac494978e601e91cab74a0605f3ffad9f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c465c7f convert GPL+ license to SPDX