$ git clone -n https://gitee.com/src-opencloudos-rpms/byteman.git /var/lib/mock/dist-oc9-build-49766-14595/root/chroot_tmpdir/scmroot/byteman
Cloning into '/var/lib/mock/dist-oc9-build-49766-14595/root/chroot_tmpdir/scmroot/byteman'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/byteman
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 451e3db import byteman-4.0.19-3.tl4