$ git clone -n https://src.fedoraproject.org/rpms/klickety.git /var/lib/mock/f39-build-1661676-40663/root/chroot_tmpdir/scmroot/klickety
Cloning into '/var/lib/mock/f39-build-1661676-40663/root/chroot_tmpdir/scmroot/klickety'...
$ git fetch origin 39e84af6fd91cde45f5ff00251b204c71b3d6ecf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/klickety
 * [new ref]         39e84af6fd91cde45f5ff00251b204c71b3d6ecf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 39e84af 23.08.2