$ git clone -n https://gitee.com/src-opencloudos-rpms/buildah.git /var/lib/mock/dist-oc9-build-49752-14595/root/chroot_tmpdir/scmroot/buildah
Cloning into '/var/lib/mock/dist-oc9-build-49752-14595/root/chroot_tmpdir/scmroot/buildah'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/buildah
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d372464 import buildah-1.30.0-1.tl4