value = received_params.getlist(key)
                if isinstance(value, list) and (len(value) == 1):
                    params_to_process[key] = value[0]
                else:
                    params_to_process[key] = value
            else:
                params_to_process[key] = received_params.get(key)

    if single_not_embedded_field:
        field_info = first_field.field_info