submit_filter(In,Out) :-
  In =.. [submit | Ls],
  add_non_author_approval(Ls, R),
  Out =.. [submit | R].

add_non_author_approval(S1, S2) :-
  gerrit:commit_author(A),
  gerrit:commit_label(label('Code-Review', 2), R),
  R \= A, !,
  S2 = [label('Non-Author-Code-Review', ok(R)) | S1].


add_non_author_approval(S1, [label('Non-Author-Code-Review', need(_)) | S1]).