$ git clone -n https://gitee.com/ocs-commit/samba.git /var/lib/mock/dist-ocs23-base-build-305198-31074/root/chroot_tmpdir/scmroot/samba
Cloning into '/var/lib/mock/dist-ocs23-base-build-305198-31074/root/chroot_tmpdir/scmroot/samba'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/ocs-commit/samba
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 31c03af fix patch