MOSCOW, July 5 – A high-end Russian food retailer has angered both gay rights campaigners and opponents by running and then apologizing for an ad that included a profile of a family in which a mother and her adult daughter both have female partners. A 2013 Russian law, decried by Western countries as state-enforced bigotry, bans the “promotion of non-traditional sexual relations to minors.” Many politicians from the ruling party are stridently anti-gay. The advert for Vkusvill, a chain of more than 1,250 food shops, pictured four women from the family in a kitchen, and said they liked the shop’s Japanese rice balls with mushrooms and its humus. It initially appeared with an “18+” warning indicating it should not be read by children.