MaxScale sends wrong character set (session tracking)

static int test_maxscale_charset(MYSQL *unused __attribute__(unused))

{

  const char *cs_test= "latin2";

  MYSQL *mysql= mysql_init(NULL);

  mysql_options(mysql, MYSQL_SET_CHARSET_NAME, cs_test);

  FAIL_IF(!my_test_connect(mysql, hostname, username,

                             password, schema, port, socketname, 0), 

         mysql_error(mysql));

  diag("Character set changed from %s to %s", cs_test, mysql_character_set_name(mysql));

  FAIL_IF(strcmp(mysql_character_set_name(mysql), cs_test), "Wrong character set name");

  mysql_close(mysql);

  return OK; 

}

# Character set changed from latin2 to utf8mb4

# Error: Wrong character set name