$ git clone -n https://src.fedoraproject.org/rpms/sddm-kcm.git /var/lib/mock/f40-build-2483225-61636/root/chroot_tmpdir/scmroot/sddm-kcm
Cloning into '/var/lib/mock/f40-build-2483225-61636/root/chroot_tmpdir/scmroot/sddm-kcm'...
$ git fetch origin 711ad25ac44efe267d8b43ceb720acf4cc4827fa:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/sddm-kcm
 * [new ref]         711ad25ac44efe267d8b43ceb720acf4cc4827fa -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 711ad25 6.0.0