Comment 2 for bug 846444

StacktraceTop:
 PluginAdapter::FocusWindowGroup (this=0x21a97a0, window_ids=<optimized out>) at /build/buildd/unity-4.14.2/plugins/unityshell/src/PluginAdapter.cpp:587
 BamfLauncherIcon::Focus (this=<optimized out>) at /build/buildd/unity-4.14.2/plugins/unityshell/src/BamfLauncherIcon.cpp:531
 BamfLauncherIcon::ActivateLauncherIcon (this=0x26a9b10, arg=...) at /build/buildd/unity-4.14.2/plugins/unityshell/src/BamfLauncherIcon.cpp:120
 LauncherIcon::RecvMouseClick (this=<optimized out>, button=1) at /build/buildd/unity-4.14.2/plugins/unityshell/src/LauncherIcon.cpp:621
 sigc::internal::signal_emit1<void, int, sigc::nil>::emit (impl=<optimized out>, _A_a1=@0x7fff67543748) at /usr/include/sigc++-2.0/sigc++/signal.h:1010