$ git clone -n https://gitee.com/src-opencloudos-rpms/libXxf86dga.git /var/lib/mock/dist-oc9-build-59828-16463/root/chroot_tmpdir/scmroot/libXxf86dga
Cloning into '/var/lib/mock/dist-oc9-build-59828-16463/root/chroot_tmpdir/scmroot/libXxf86dga'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/libXxf86dga
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ddc7277 import libXxf86dga-1.1.5-4.tl4