$ git clone -n https://gitee.com/opencloudos-stream/flatpak.git /var/lib/mock/dist-oc9-epol-build-68299-46980/root/chroot_tmpdir/scmroot/flatpak
Cloning into '/var/lib/mock/dist-oc9-epol-build-68299-46980/root/chroot_tmpdir/scmroot/flatpak'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/flatpak
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7991b99 !1 initial Merge pull request !1 from jeremiazhao/master