$ git clone -n https://gitee.com/src-opencloudos-rpms/libreoffice.git /var/lib/mock/dist-oc8-build-243412-83119/root/chroot_tmpdir/scmroot/libreoffice
Cloning into '/var/lib/mock/dist-oc8-build-243412-83119/root/chroot_tmpdir/scmroot/libreoffice'...
$ git fetch origin 35b2f789486d997908079c6ee39df33f262797bc:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/libreoffice
 * [new ref]         35b2f789486d997908079c6ee39df33f262797bc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 35b2f78 import libreoffice-6.4.7.2-21.tl3