$ git clone -n https://gitee.com/src-opencloudos-rpms/libotf.git /var/lib/mock/dist-oc9-build-70439-47434/root/chroot_tmpdir/scmroot/libotf
Cloning into '/var/lib/mock/dist-oc9-build-70439-47434/root/chroot_tmpdir/scmroot/libotf'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/libotf
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4ceabb8 import libotf-0.9.16-1.tl4