$ git clone -n https://gitee.com/src-opencloudos-rpms/libijs.git /var/lib/mock/dist-oc9-build-59471-16463/root/chroot_tmpdir/scmroot/libijs
Cloning into '/var/lib/mock/dist-oc9-build-59471-16463/root/chroot_tmpdir/scmroot/libijs'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/libijs
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 75accb8 import libijs-0.35-4.tl4