$ git clone -n https://gitee.com/src-opencloudos-rpms/bzip2.git /var/lib/mock/dist-oc9-la64-build-126061-75676/root/chroot_tmpdir/scmroot/bzip2
Cloning into '/var/lib/mock/dist-oc9-la64-build-126061-75676/root/chroot_tmpdir/scmroot/bzip2'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/bzip2
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8e5ede1 import bzip2-1.0.8-6.tl4