Did M2 's prequel 's German director produce and edit M0
SELECT count(*) WHERE {
?x0 ns:film.director.film ?x1 .
?x0 ns:film.editor.film M0 .
?x0 ns:film.producer.film|ns:film.production_company.films M0 .
?x0 ns:people.person.nationality ns:m.0345h .
?x1 ns:film.film.sequel M2
}