For the reasons given in my previous comment, I believe this is a bug not in the messaging menu, but primarily in the Launcher. So I'm moving it to Unity.
Of the six suggestions I proposed, #2 and #4 have been implemented so far. That might have been enough to fix the problem by itself. Regardless, I look forward to seeing the other four suggestions implemented too.
For the reasons given in my previous comment, I believe this is a bug not in the messaging menu, but primarily in the Launcher. So I'm moving it to Unity.
Of the six suggestions I proposed, #2 and #4 have been implemented so far. That might have been enough to fix the problem by itself. Regardless, I look forward to seeing the other four suggestions implemented too.