$ git clone -n https://gitee.com/opencloudos-stream/osbuild.git /var/lib/mock/dist-oc9-epol-build-241854-82901/root/chroot_tmpdir/scmroot/osbuild
Cloning into '/var/lib/mock/dist-oc9-epol-build-241854-82901/root/chroot_tmpdir/scmroot/osbuild'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/osbuild
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 05b11be !6 upgrade to 183-1 Merge pull request !6 from zeyouliu/master