$ git clone -n https://gitee.com/opencloudos-stream/golang-github-saracen-walker.git /var/lib/mock/dist-oc9-epol-build-104080-66342/root/chroot_tmpdir/scmroot/golang-github-saracen-walker
Cloning into '/var/lib/mock/dist-oc9-epol-build-104080-66342/root/chroot_tmpdir/scmroot/golang-github-saracen-walker'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/golang-github-saracen-walker
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b893aaa update