$ git clone -n https://gitee.com/src-opencloudos-rpms/netcdf.git /var/lib/mock/dist-oc9-epol-build-54503-14768/root/chroot_tmpdir/scmroot/netcdf
Cloning into '/var/lib/mock/dist-oc9-epol-build-54503-14768/root/chroot_tmpdir/scmroot/netcdf'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/netcdf
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b4030fc import netcdf-4.9.0-2.tl4