Romania has lost a complicated EU court battle stemming from a Hungary-backed campaign for regional minorities — such as ethnic Hungarians in Romania — to access part of a country’s EU funding. The case concerns an EU law requiring the European Commission to consider policy ideas from campaigns that gather 1 million signatures, though it doesn’t have to act on the ideas. The European Union’s top court on Thursday dismissed an appeal by Romania that sought to reject one such European Citizens’ Initiative (ECI), concerning regional minorities’ rights to access EU money. The disputed ECI, filed i…