As COVID-19 lockdowns in China ease, production facilities like Tesla’s Gigafactory Shanghai are grappling with how to best kick-start multi-shift production. Tesla is planning to resume double shifts at Gigafactory Shanghai, with those familiar with the matter saying it could happen as soon as mid-May, according to Bloomberg . The move would bring back more employees and get factory lines running around the clock, and it’s expected to happen when staffing and parts shortages ease up later this month. Before the recent surge in COVID-19 cases beginning in March, Tesla had three shifts running over 24 hours a day, seven…