$ git clone -n https://src.fedoraproject.org/rpms/itinerary.git /var/lib/mock/f39-build-2083396-49920/root/chroot_tmpdir/scmroot/itinerary
Cloning into '/var/lib/mock/f39-build-2083396-49920/root/chroot_tmpdir/scmroot/itinerary'...
$ git fetch origin a588549bd736e28959920c35c662ec0f075b5d12:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/itinerary
 * [new ref]         a588549bd736e28959920c35c662ec0f075b5d12 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a588549 23.08.4