def forget_area(self, area_uuid):
        """
        Remove an Upload Area from out cache of known areas.
        :param str area_uuid: The RFC4122-compliant UUID of the Upload Area.
        """
        if self._config.upload.current_area == area_uuid:
            self._config.upload.current_area = None
        if area_uuid in self._config.upload.areas:
            del self._config.upload.areas[area_uuid]
            self.save()
Remove an Upload Area from out cache of known areas.
        :param str area_uuid: The RFC4122-compliant UUID of the Upload Area.