$ git clone -n https://gitee.com/src-opencloudos-rpms/xcb-util-wm.git /var/lib/mock/dist-oc9-build-72291-47672/root/chroot_tmpdir/scmroot/xcb-util-wm
Cloning into '/var/lib/mock/dist-oc9-build-72291-47672/root/chroot_tmpdir/scmroot/xcb-util-wm'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/xcb-util-wm
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c45e585 import xcb-util-wm-0.4.2-2.tl4