$ git clone -n https://src.fedoraproject.org/rpms/CubicSDR.git /var/lib/mock/f42-build-3528297-46309/root/chroot_tmpdir/scmroot/CubicSDR
Cloning into '/var/lib/mock/f42-build-3528297-46309/root/chroot_tmpdir/scmroot/CubicSDR'...
$ git fetch origin 09fa74d98c65327de36a5b0d21d6ab442dd20852:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/CubicSDR
 * [new ref]         09fa74d98c65327de36a5b0d21d6ab442dd20852 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 09fa74d Rebuild for hamlib 4.6.