$ git clone -n https://src.fedoraproject.org/rpms/spacemit-firmware.git /var/lib/mock/f45-build-36258-702/root/chroot_tmpdir/scmroot/spacemit-firmware
Cloning into '/var/lib/mock/f45-build-36258-702/root/chroot_tmpdir/scmroot/spacemit-firmware'...
$ git fetch origin 8e65b0e47ec6074ec73cf23104875619241ffb58:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/spacemit-firmware
 * [new ref]         8e65b0e47ec6074ec73cf23104875619241ffb58 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8e65b0e Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild