$ git clone -n https://gitee.com/opencloudos-stream/kdiamond.git /var/lib/mock/dist-oc9-epol-build-104957-66507/root/chroot_tmpdir/scmroot/kdiamond
Cloning into '/var/lib/mock/dist-oc9-epol-build-104957-66507/root/chroot_tmpdir/scmroot/kdiamond'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/kdiamond
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9350622 update