$ git clone -n https://src.fedoraproject.org/rpms/lightdm-settings.git /var/lib/mock/f40-build-2009019-45439/root/chroot_tmpdir/scmroot/lightdm-settings
Cloning into '/var/lib/mock/f40-build-2009019-45439/root/chroot_tmpdir/scmroot/lightdm-settings'...
$ git fetch origin 499ba9a5fb762e5b24078a81fa901df93dfd0533:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/lightdm-settings
 * [new ref]         499ba9a5fb762e5b24078a81fa901df93dfd0533 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 499ba9a Update to 2.0.1 release