$ git clone -n https://gitee.com/src-opencloudos-rpms/raptor2.git /var/lib/mock/dist-oc9-build-49435-14595/root/chroot_tmpdir/scmroot/raptor2
Cloning into '/var/lib/mock/dist-oc9-build-49435-14595/root/chroot_tmpdir/scmroot/raptor2'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/raptor2
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b2d9568 import raptor2-2.0.15-3.tl4