A Hong Kong court has overturned one of two convictions for seven top democracy activists, including media mogul Jimmy Lai, over an unauthorised protest in 2019. Photograph: Vincent Yu/AP A Hong Kong court has overturned one of two convictions for seven top democracy activists, including media mogul Jimmy Lai, over an unauthorised protest in 2019, a narrow victory for the city’s beleaguered opposition. The Court of Appeal said in a written ruling on Monday that there was no evidence of the defendants playing any role in planning, organising or issuing any instructions either before or during the march. Judges Andrew…