$ git clone -n https://src.fedoraproject.org/rpms/klickety.git /var/lib/mock/f39-build-1689121-41124/root/chroot_tmpdir/scmroot/klickety
Cloning into '/var/lib/mock/f39-build-1689121-41124/root/chroot_tmpdir/scmroot/klickety'...
$ git fetch origin 63ad28de8ebb25ef2214ebc31359e594fef71766:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/klickety
 * [new ref]         63ad28de8ebb25ef2214ebc31359e594fef71766 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 63ad28d 23.08.3