By Elizabeth Pineau and Ingrid Melander PARIS (Reuters) -France’s most fragmented parliament in decades sat for the first time on Tuesday, as President Emmanuel Macron faced the prospect of having to negotiate each reform with opposition parties who will be looking to flex their newly won influence. Macron, who was re-elected president in April, lost control of parliament in legislative elections this month – meaning it is no longer a rubber stamp for the government’s plans. With no tradition of coalitions or minority government, unlike most of France’s European neighbours, the most likely sce…