$ git clone -n https://src.fedoraproject.org/rpms/procps-ng.git /var/lib/mock/f42-build-867410-175499/root/chroot_tmpdir/scmroot/procps-ng
Cloning into '/var/lib/mock/f42-build-867410-175499/root/chroot_tmpdir/scmroot/procps-ng'...
$ git fetch origin 5fb11fa0a9f9f6011b9e97a079ff7d65ebdb5a10:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/procps-ng
 * [new ref]         5fb11fa0a9f9f6011b9e97a079ff7d65ebdb5a10 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5fb11fa Rebuilt for the bin-sbin merge (2nd attempt)