$ git clone -n https://gitee.com/src-opencloudos-rpms/openblas.git /var/lib/mock/dist-oc9-build-70949-47493/root/chroot_tmpdir/scmroot/openblas
Cloning into '/var/lib/mock/dist-oc9-build-70949-47493/root/chroot_tmpdir/scmroot/openblas'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/openblas
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6dbd46c import openblas-0.3.23-3.tl4