Alibaba Group Holding Ltd. fired a woman who accused a manager of sexual assault, a surprise move that came just months after the Chinese e-commerce leader admitted to spoiling its initial response to the allegation. The employee named Zhou told Dahe Daily that Alibaba fired her for spreading false information in August about the rape by a senior executive. She did not receive any severance pay and was compensated until the layoff date of Nov. 25, according to a screenshot of an official memo and an interview with Zhou published by China’s central newspaper. Zhou’s dismissal ends a months-long social...