$ git clone -n https://gitee.com/src-opencloudos-rpms/libgta.git /var/lib/mock/dist-oc9-epol-build-53561-14768/root/chroot_tmpdir/scmroot/libgta
Cloning into '/var/lib/mock/dist-oc9-epol-build-53561-14768/root/chroot_tmpdir/scmroot/libgta'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/libgta
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ef86171 import libgta-1.2.1-2.tl4