$ git clone -n https://gitee.com/src-opencloudos-rpms/libX11.git /var/lib/mock/dist-oc9-build-128706-77470/root/chroot_tmpdir/scmroot/libX11
Cloning into '/var/lib/mock/dist-oc9-build-128706-77470/root/chroot_tmpdir/scmroot/libX11'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/libX11
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c07820f import libX11-1.8.7-3.tl4