$ git clone -n https://gitee.com/src-opencloudos-rpms/libserializer.git /var/lib/mock/dist-oc9-build-70496-47438/root/chroot_tmpdir/scmroot/libserializer
Cloning into '/var/lib/mock/dist-oc9-build-70496-47438/root/chroot_tmpdir/scmroot/libserializer'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/libserializer
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d447375 import libserializer-1.1.2-3.tl4