$ git clone -n https://src.fedoraproject.org/rpms/greetd.git /var/lib/mock/f40-build-1932273-25124/root/chroot_tmpdir/scmroot/greetd
Cloning into '/var/lib/mock/f40-build-1932273-25124/root/chroot_tmpdir/scmroot/greetd'...
$ git fetch origin 9960ee183e4207c515bfaf3660e20939610d7f1f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/greetd
 * [new ref]         9960ee183e4207c515bfaf3660e20939610d7f1f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9960ee1 Update to 0.10.3 (#2290645)