Notifications for incoming messages only shown when no chat window is open
Bug description
Notifications for a new incoming message are not always shown: They are shown only when there is no tab yet for that contact in the chat window. Since I often have that chat window minimized in background (to avoid leaving group chats), that's a problem - I don't receive notifications for these chats.
I checked the configuration, including the advanced one, and found nothing to enable this kind of notifications. I do not know what the intended behavior is, but my expectation was that chats that are completely closed, and chats that are in background because the chat window does not have focus, are treated the same. Of course, I would not like notifications for chats that currently have focus. If the current behavior is intended, feel free to change this to a feature request.
Steps to reproduce
Start chatting with someone. Then focus another window, and wait till she sends you another message. No notification appears.
Software versions
OS version: Debian testing amd64 GTK version: 2.24.25 PyGTK version: 2.24.0