$ git clone -n https://src.fedoraproject.org/rpms/kscreen.git /var/lib/mock/f40-build-2243207-53669/root/chroot_tmpdir/scmroot/kscreen
Cloning into '/var/lib/mock/f40-build-2243207-53669/root/chroot_tmpdir/scmroot/kscreen'...
$ git fetch origin 602678f353651e0222916872c4504699cc8eec44:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kscreen
 * [new ref]         602678f353651e0222916872c4504699cc8eec44 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 602678f 5.92.0