Beijing’s top official on Hong Kong affairs spent a night over the border in Shenzhen during his two-day inspection tour of Hong Kong this week. HK01 and Sing Tao Daily reported on Wednesday that Xia Baolong, who arrived in Hong Kong on Tuesday, did not stay in the city that night but returned through the Huanggang border checkpoint the following morning Xia Baolong visited Kwu Tung North, a new development district in the New Territories, on Ju…