$ git clone -n https://gitee.com/src-opencloudos-rpms/libmodulemd.git /var/lib/mock/dist-oc9-build-46873-14592/root/chroot_tmpdir/scmroot/libmodulemd
Cloning into '/var/lib/mock/dist-oc9-build-46873-14592/root/chroot_tmpdir/scmroot/libmodulemd'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/libmodulemd
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b22c809 import libmodulemd-2.13.0-3.tl4