$ git clone -n https://gitee.com/src-anolis-os/libreoffice.git /var/lib/mock/dist-an7_9-updates-build-382364-71854/root/chroot_tmpdir/scmroot/libreoffice
Cloning into '/var/lib/mock/dist-an7_9-updates-build-382364-71854/root/chroot_tmpdir/scmroot/libreoffice'...
$ git fetch origin a7:KOJI_FETCH_HEAD
From https://gitee.com/src-anolis-os/libreoffice
 * [new branch]      a7         -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 33ce5e5 Update to libreoffice-5.3.6.1-26.el7_9.src.rpm