Comment 2 for bug 982384

StacktraceTop:
 emit (impl=0x81, _A_a7=@0xbfbf02cc, _A_a6=@0xbfbf02c8, _A_a5=@0xbfbf02c4, _A_a4=..., _A_a3=..., _A_a2=..., _A_a1=...) at /usr/include/sigc++-2.0/sigc++/signal.h:2559
 emit (_A_a7=@0xbfbf02cc, _A_a6=@0xbfbf02c8, _A_a5=@0xbfbf02c4, _A_a4=..., _A_a3=..., _A_a2=..., _A_a1=..., this=0x8d7fff8) at /usr/include/sigc++-2.0/sigc++/signal.h:3471
 unity::launcher::Launcher::handle_dbus_method_call (connection=0xb0605050, sender=0xafc2c860 ":1.491", object_path=0xafc07320 "/com/canonical/Unity/Launcher", interface_name=0xafc222a8 "com.canonical.Unity.Launcher", method_name=0xafc3cca8 "AddLauncherItemFromPosition", parameters=0x9a39438, invocation=0x92de580, user_data=0x8d7fd48) at /build/buildd/unity-5.10.0/plugins/unityshell/src/Launcher.cpp:2966
 call_in_idle_cb (user_data=0x92de580) at /build/buildd/glib2.0-2.32.0/./gio/gdbusconnection.c:4687
 g_idle_dispatch (source=0xafc2e910, callback=0xb637b620 <call_in_idle_cb>, user_data=0x92de580) at /build/buildd/glib2.0-2.32.0/./glib/gmain.c:4634