Comment 2 for bug 842784

StacktraceTop:
 dee_sequence_model_find_tag (self=0x284cc90, iter=<optimized out>, tag=0x1, out_row_tag=0x7fff4a95ee20, out_tag=0x7fff4a95ee28) at dee-sequence-model.c:788
 dee_sequence_model_get_tag (self=0x284cc90, iter=0x7fbc900eb4f0, tag=0x1) at dee-sequence-model.c:640
 unity::dash::ResultRendererTile::IconLoaded (this=0x3d8bea0, texid=<optimized out>, size=<optimized out>, pixbuf=0x4c0a5e0, icon_name=<optimized out>, row=...) at /build/buildd/unity-4.12.0/plugins/unityshell/src/ResultRendererTile.cpp:333
 operator() (_A_a5=<optimized out>, _A_a4=<optimized out>, _A_a3=@0x7fff4a95f020, _A_a2=@0x3eed2d0, _A_a1=@0x7fff4a95f030, this=0x1f0ac30) at /usr/include/sigc++-2.0/sigc++/functors/mem_fun.h:2127
 operator()<const char* const&, const unsigned int&, _GdkPixbuf* const&, std::basic_string<char>&, unity::dash::Result&> (_A_arg5=<optimized out>, _A_arg4=<optimized out>, this=0x1f0ac28, _A_arg3=@0x7fff4a95f020, _A_arg2=@0x3eed2d0, _A_arg1=@0x7fff4a95f030) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:166