$ git clone -n https://gitee.com/src-opencloudos-rpms/libXmu.git /var/lib/mock/dist-oc9-build-70623-47453/root/chroot_tmpdir/scmroot/libXmu
Cloning into '/var/lib/mock/dist-oc9-build-70623-47453/root/chroot_tmpdir/scmroot/libXmu'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/libXmu
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0286b14 import libXmu-1.1.4-2.tl4