$ git clone -n https://gitee.com/src-opencloudos-rpms/cairomm.git /var/lib/mock/dist-oc9-build-69570-47308/root/chroot_tmpdir/scmroot/cairomm
Cloning into '/var/lib/mock/dist-oc9-build-69570-47308/root/chroot_tmpdir/scmroot/cairomm'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/cairomm
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e1f36b0 import cairomm-1.14.4-5.tl4