STOCKHOLM (Reuters) - H&M , the world's second-biggest fashion retailer, suffered its first loss in decades in the second quarter and said it would accelerate store closures, although trade has revived as lockdowns ease.Restrictions to contain the novel coronavirus shuttered stores across the world and piled pressure on fashion giants such as H&M and its main rival and world leader, Zara owner Inditex .H&M, which in April flagged it expected a second quarter loss, said on Friday it had increased..