$ git clone -n https://gitee.com/src-opencloudos-rpms/doctest.git /var/lib/mock/dist-oc9-build-121873-71843/root/chroot_tmpdir/scmroot/doctest
Cloning into '/var/lib/mock/dist-oc9-build-121873-71843/root/chroot_tmpdir/scmroot/doctest'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/doctest
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 77cc2ce import doctest-2.4.9-3.tl4