$ git clone -n https://gitee.com/src-opencloudos-rpms/libreoffice.git /var/lib/mock/dist-oc8-build-81642-55541/root/chroot_tmpdir/scmroot/libreoffice
Cloning into '/var/lib/mock/dist-oc8-build-81642-55541/root/chroot_tmpdir/scmroot/libreoffice'...
$ git fetch origin 8127dd284c10bd0a8180ccbd3f8d42cc3ade1da6:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/libreoffice
 * [new ref]         8127dd284c10bd0a8180ccbd3f8d42cc3ade1da6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8127dd2 import libreoffice-6.4.7.2-17.tl3