CARBIS BAY, France—President Emmanuel Macron on Sunday said that France respects Britain’s sovereignty but it is time to end rows over sausages and focus on more serious issues. Tensions between Britain and the European Union over their Brexit deal exploded into an open war of words on Sunday, with both sides accusing the other of sowing disharmony at the Group of Seven summit. “My wish is that we succeed collectively in putting into action what we signed several months ago,” Macron told a news conference at the G7 leaders’ summit. “Let’s not waste time with controversies that are created in corridors and backrooms.” Prime Minister Boris Johnson asked Macron during a meeting how he would feel if Toulouse sausage makers could not sell their products on Paris markets, drawing a comparison with northern Ireland sausage makers. “On this subject, we all need to stay calm,” Macron told reporters at the …