HTK-MBU

RS485 POSIX ioctl flags are never cleared

1

## Root Issue This issue relates to the posix implementation ([serialposix.py](https://github.com/pyserial/pyserial/blob/master/serial/serialposix.py)) If the `rs485_mode` property is set to `None`, the method `_set_rs485_mode(...)` is never called, and the ioctl flags are...

Hello, We are using betterproto with the NI-XNET gRPC Server. (For Reference: https://github.com/ni/grpc-device) They use some messages which have a field with name "str". This causes a RecursionError on import...