Version:            (using KDE 4.3.1)
OS:                Linux
Installed from:    openSUSE RPMs

If I run (with no other konsole running) 
konsole --name "foo"

then the WM_CLASS property is set (properly) as :
WM_CLASS(STRING) = "foo", "Konsole"

but If I already have a konsole running, then starting "konsole --name foo" won't set the WM_CLASS:
WM_CLASS(STRING) = "Qt-subapplication", "Konsole"

What's weird, is that if the command line is executed from a running konsole, then the --name switch will work. the bug is only triggered when the command line is run from elsewhere (I use a ""link to application"  icon on the desktop).

If there are no other konsole running, then launching the konsole --name foo via the icon WILL set the WM_CLASS property... but after that, the other konsole started from the regular menu (without the --name switch) will have the wrong WM_CLASS (foo)