Comment 1 for bug 703769

Hmmm, I'm misunderstanding how it used to work, as the destroy signal from DbusGProxy is only fired when the proxy is destroyed, and not when the application disappears off the bus.

This used to work somehow though.

The new code in indicator-appmenu (listening to the notify::g-name-owner signal in window-menus.c) doesn't seem to work anyway though (it's never fired), and appears to be trying to do something different to the code it replaced.