As I can see it, the idea of the bug still exists; we don't do any queuing of notifications while fullscreen applications are running, we just disregard them. NotifyOSD has nothing to do with this, other than it probably suffers from this exact same bug (or feature request if you want to call it that).
I'm not so sure it's worth fixing however, since most notifications are just that, and can be safely ignored.
As I can see it, the idea of the bug still exists; we don't do any queuing of notifications while fullscreen applications are running, we just disregard them. NotifyOSD has nothing to do with this, other than it probably suffers from this exact same bug (or feature request if you want to call it that).
I'm not so sure it's worth fixing however, since most notifications are just that, and can be safely ignored.