Description of problem:
When setting gwibber to notify for all messages, all messages from facebook account are literaly quadruplicated, and the message tray shows 4 sources associated with gwibber (meaning that they're sent from 4 different processes)

Version-Release number of selected component (if applicable):
gwibber-3.0.0.1-1.fc15.noarch

How reproducible:
Always

Steps to Reproduce:
1. Set gwibber to notify for all messages
2. Wait for an update.

Actual results:
The same notification is shown an average of four times, and four sources are shown in the message tray.

Expected results:
Each notification is shown only once.