Listening to Update Chat Presence

[BasselAshi]

Been debugging it.auties.whatsapp.socket.SocketHandler.onUpdateChatPresence and I can see that you set the store contact's last known presence to status then compare status to the contact, if equal, then you return before invoking the listeners.

What's the reasoning behind this? And when will this ever be false so that we can hit the listeners?

For reference, I'm referring to this line