Network port connect error never goes away

[strickce]

Describe the bug
I got an error when I tried to do a network (OTA) download to my ESP8266. The message was Unexpected error. Reconnecting NodeMCU 1.0 (ESP-12E Module)[esp8266:esp8266:nodemcuv2] on port 191.168.68.109. The IDE tries to reconnect once per second and keeps repeating, even after I select a serial port and reload the esp8266 sucessfully. The error message repeating is the subject of this issue, but I will research the connection error itself and may raise another issue for that.

To Reproduce
Steps to reproduce the behavior:

1. Try to connect to a port which causes a connection error, then see that the error message will not go away

Expected behavior
there should be a way to dismiss the error message

Desktop (please complete the following information):

• OS: [MACOS]
• Version: [e.g. 12.0.1]

Additional context
The ip address of the 8266 shows correctly in the port selection pulldown. I have the 8266 in STA mode.

[strickce]

More information: If I get the error, then select the serial port, the error keeps flashing once per second. Then if I stop the serial monitor and restart it, the error message goes away. I think that the only error with the message is that it should go away when the network port is deselected.

[per1234]

Thanks @strickce. I am able to reproduce the bug when using the version of the IDE from the time of the report: 2.0.0-beta.12. I am not able to reproduce the bug with 2.0.0-rc1 or newer.

I didn't bisect the fix any farther than that, but I am pretty sure it happened at #597