$ git clone -n https://src.fedoraproject.org/rpms/scons.git /var/lib/mock/f41-build-side-2-python-2713005-30508/root/chroot_tmpdir/scmroot/scons
Cloning into '/var/lib/mock/f41-build-side-2-python-2713005-30508/root/chroot_tmpdir/scmroot/scons'...
$ git fetch origin b880bc2bc9d3c6b1178fe6cd255c923c9eed2857:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/scons
 * [new ref]         b880bc2bc9d3c6b1178fe6cd255c923c9eed2857 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b880bc2 Release 4.8.1