Complex sentence: Ultimately the agreement to make no changes was concluded by the three governments and the Commission then rubber-stamped it; the publication, or not, of the Commission's report became a legal irrelevance but remained controversial ever after.
Split into simpler sentences: Ultimately the agreement to make no changes was concluded by the three governments and the Commission rubber-stamped it. The publication, or not, of the Commission's report became a legal irrelevance but remained controversial ever after.