Tear down in catch of an Exception

Signed-off-by: Côme Chilliet <come.chilliet@nextcloud.com>

apps/provisioning_api/lib/Controller/AUserData.php

@@ -277,6 +277,8 @@ abstract class AUserData extends OCSController {
 					'exception' => $e,
 				]
 			);
+			/* In case the Exception left things in a bad state */
+			\OC_Util::tearDownFS();
 			return [];
 		}
 		return $data;