Comment 2 for bug 1064278

StacktraceTop:
 ObjectPtr<unity::launcher::LauncherIcon> (WarnMissuse=false, ptr=0x986d300, this=0xbfab3a08) at /usr/include/Nux-3.0/NuxCore/ObjectPtr.h:118
 unity::launcher::LauncherIcon::EmitNeedsRedraw (this=0x986d300) at /build/buildd/unity-6.8.0/launcher/LauncherIcon.cpp:1178
 unity::launcher::HudLauncherIcon::OnHudIconChanged (this=0x986d300, data=0xb0) at /build/buildd/unity-6.8.0/launcher/HudLauncherIcon.cpp:78
 operator() (this=<optimized out>, _A_a1=<optimized out>) at /usr/include/sigc++-2.0/sigc++/functors/mem_fun.h:1851
 std::_Function_handler<void (_GVariant*), sigc::bound_mem_functor1<void, unity::launcher::HudLauncherIcon, _GVariant*> >::_M_invoke(std::_Any_data const&, _GVariant*) (__functor=..., __args#0=0xb4f3750) at /usr/include/c++/4.6/functional:1778