$ git clone -n https://src.fedoraproject.org/rpms/sddm-kcm.git /var/lib/mock/f40-build-2131378-50800/root/chroot_tmpdir/scmroot/sddm-kcm
Cloning into '/var/lib/mock/f40-build-2131378-50800/root/chroot_tmpdir/scmroot/sddm-kcm'...
$ git fetch origin 9778497ce91a4d724713ac0cd810ac788b0dc6fe:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/sddm-kcm
 * [new ref]         9778497ce91a4d724713ac0cd810ac788b0dc6fe -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9778497 5.91.0