MaxScale can hang if non-MariaDB data is sent to a MariaDB protocol port

#!/usr/bin/env python3                                                                                                                                                                                                                                                                    

import socket

import time

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

s.connect(("127.0.0.1", 4006))

for i in range(0, 2000):

  s.send(bytes([0xff, 0xff, 0xff, 0]))

time.sleep(1000)