Comment 2 for bug 1063300

StacktraceTop:
 g_strdup (str=0x720000 <Address 0x720000 out of bounds>) at /build/buildd/glib2.0-2.34.0/./glib/gstrfuncs.c:363
 unity_lens_impl_real_activate_with_hints_co (_data_=0x9b7f2b8) at unity-lens-private.c:2817
 unity_protocol_lens_service_activate_with_hints (self=0x99cb4c0, uri=0x9ad2e40 "", action_type=0, hints=0xb4201190, _callback_=_callback_@entry=0xb76dcc40 <unity_lens_impl_activate_ready>, _user_data_=_user_data_@entry=0x9af50c8) at protocol-lens-interface.c:403
 unity_lens_impl_real_activate_co (_data_=0x9af50c8) at unity-lens-private.c:2643
 unity_protocol_lens_service_activate (self=self@entry=0x99cb4c0, uri=uri@entry=0x9ae5be0 "", action_type=action_type@entry=0, _callback_=_callback_@entry=0xb6cfd170 <_dbus_unity_protocol_lens_service_activate_ready>, _user_data_=_user_data_@entry=0x9b27380) at protocol-lens-interface.c:393