$ git clone -n https://gitee.com/src-opencloudos-rpms/liblockfile.git /var/lib/mock/dist-oc9-build-128298-77261/root/chroot_tmpdir/scmroot/liblockfile
Cloning into '/var/lib/mock/dist-oc9-build-128298-77261/root/chroot_tmpdir/scmroot/liblockfile'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/liblockfile
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 18e76be import liblockfile-1.17-6.tl4