$ git clone -n https://src.fedoraproject.org/rpms/units-llnl.git /var/lib/mock/f43-build-59173839-6571501/root/chroot_tmpdir/scmroot/units-llnl
Cloning into '/var/lib/mock/f43-build-59173839-6571501/root/chroot_tmpdir/scmroot/units-llnl'...
$ git fetch origin c495824c5941656341df454ba2f35f42857811d2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/units-llnl
 * [new ref]         c495824c5941656341df454ba2f35f42857811d2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c495824 New package: units-llnl (RHBZ#2354972)