$ git clone -n https://src.fedoraproject.org/rpms/itinerary.git /var/lib/mock/f45-build-14262-458/root/chroot_tmpdir/scmroot/itinerary
Cloning into '/var/lib/mock/f45-build-14262-458/root/chroot_tmpdir/scmroot/itinerary'...
$ git fetch origin a5d3fe0b34aa6172300fb030d2382fd171216b96:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/itinerary
 * [new ref]         a5d3fe0b34aa6172300fb030d2382fd171216b96 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a5d3fe0 Rebuild for libquotient update