Tradfri OnOFF Switch - why 2 messages sent when clicked (?)

Hi, does anyone know why the server sends two messages when i press ON or OFF, this irritates Openhab a lot and i do not see the use for this…

15.10.2019 18:45:51 /z2m/Tradfri_Switch01 {“battery”:60,“linkquality”:0}
15.10.2019 18:45:51 /z2m/Tradfri_Switch01 {“battery”:60,“linkquality”:0,“click”:“off”}

Thanks. Norber

I think it’s the same as with Xiaomi wireless switch. It’s “expected behavior” when home assistant integration is enabled. More information here: https://github.com/Koenkk/zigbee2mqtt/issues/1583#issuecomment-496800585