SHANGHAI (Reuters) – Tesla suspended production at its Shanghai plant on Saturday, according to an internal notice and two people with knowledge of the matter, bringing ahead a previous plan to pause most work at the plant in the last week of December. The U.S. automaker cancelled the morning shift and told all workers at its most productive manufacturing hub they could start their break, said the people and the notice seen by Reuters. The company did not give a reason. Reuters reported earlier this month that the electric car giant planned to suspend Model Y production at the plant from Dec. …