$ git clone -n https://src.fedoraproject.org/rpms/libkkc-data.git /var/lib/mock/f42-build-878737-181294/root/chroot_tmpdir/scmroot/libkkc-data
Cloning into '/var/lib/mock/f42-build-878737-181294/root/chroot_tmpdir/scmroot/libkkc-data'...
$ git fetch origin 5811b71dd7910de3b03d79c4cf99bbd8ec29d2fa:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libkkc-data
 * [new ref]         5811b71dd7910de3b03d79c4cf99bbd8ec29d2fa -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5811b71 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild