Comment 9 for bug 674138

Here's a quick work-around. Many caveats included:

    ***

Change the indicator appmenu to to base the menu shown on window stacking
rather than solely on the input focus. This works slightly better under the
"sloppy focus" scheme.

There are, however, some caveats:

* I didn't test what happens with the usual click-to-focus

* There is no visual indication of which window has the menu.

* A patch to compiz is required to make the stacking be always up-to-date.

* Always-on-top and desktop windows are still handled the old way.
  The issue is that these windows never receive stacking changes,
  and therefore the only way to deal with them is via the input focus.

  Fixing this requires a complete separation of the menu focus from the input
  focus --- this can only be done within Compiz, and the information should
  from there be communicated to indicator-appmenu e.g. via a root window
  attribute.