MADRID — Carles Puigdemont humiliated Catalonia’s police force — and it may never recover. The force, the Mossos d’Esquadra, has long been a prominent symbol of the region’s identity and self-governing powers. Some within its ranks support Puigdemont, the former regional president who fled to Belgium after the failed independence referendum of 2017. Then came the events of August 8. Puigdemont made it clear that he would return to Barcelona when the regional parliament voted on a new president. He did indeed show up and made a speech surrounded by supporters and the media. As legal charges were still hanging…