$ git clone -n https://src.fedoraproject.org/rpms/lutris.git /var/lib/mock/f40-build-2255692-54263/root/chroot_tmpdir/scmroot/lutris
Cloning into '/var/lib/mock/f40-build-2255692-54263/root/chroot_tmpdir/scmroot/lutris'...
$ git fetch origin fcd288041a285b93f1f64e646ceadbb1b0de9728:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/lutris
 * [new ref]         fcd288041a285b93f1f64e646ceadbb1b0de9728 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fcd2880 0.5.16 (And a patch)