$ git clone -n https://gitee.com/src-opencloudos-rpms/libiodbc.git /var/lib/mock/dist-oc9-build-53023-14748/root/chroot_tmpdir/scmroot/libiodbc
Cloning into '/var/lib/mock/dist-oc9-build-53023-14748/root/chroot_tmpdir/scmroot/libiodbc'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/libiodbc
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 87ae7c0 import libiodbc-3.52.15-2.tl4