$ git clone -n https://gitee.com/src-opencloudos-rpms/orca.git /var/lib/mock/dist-oc9-build-63307-16463/root/chroot_tmpdir/scmroot/orca
Cloning into '/var/lib/mock/dist-oc9-build-63307-16463/root/chroot_tmpdir/scmroot/orca'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/orca
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at eb203f7 import orca-43.0-7.tl4