When Spark receives a broadcast, it shows in the tab "Broadcast from John Doe". It takes the name from the Name field of a user. But in the chat window itself it shows "(10:00) johndoe Broadcast: message" where johndoe is the Username field of that user. Should show user's Name in the chat window.
Actually, in the current 2.7.0 version in the tab it only shows the "i" icon and sender's name.
Converting this to a sub-task of as that patch has also solved this ticket Now it shows Name - Broadcast: message
Thanks Tomas Hruska and Jason for committing