Green led stays on after wifi/mqtt connect

[jowi24]

I'm using a Sonoff S20 with your code.

Expected (homie) behaviour:

• Green led is permanent on during configuration mode
• Green led flashes after successfully connecting to the wlan
• Green led is off after sucessfully connecting to the mqtt broker

Observed behaviour differes in the last step:

• Green led is permanently on after sucessfully connecting to the mqtt broker

I found this code in setupHandler():

  #ifdef SONOFFS20
  digitalWrite(PIN_LED, LOW);
  ledNode.setProperty("state").send("off");
  #endif

Why is PIN_LED switched on here?