Comment 2 for bug 1433302

StacktraceTop:
 g_type_check_instance_is_fundamentally_a (type_instance=type_instance@entry=0x7f5ffc41aa30, fundamental_type=fundamental_type@entry=80) at /build/buildd/glib2.0-2.42.2/./gobject/gtype.c:3981
 g_object_get_data (object=0x7f5ffc41aa30, key=key@entry=0x7f5ff4560fd6 "gtk-tree-row-refs") at /build/buildd/glib2.0-2.42.2/./gobject/gobject.c:3435
 gtk_tree_row_reference_free (reference=0x7f5ffc41aa80) at /build/buildd/gtk+3.0-3.14.9/./gtk/gtktreemodel.c:2488
 gtk_tree_view_set_top_row (tree_view=tree_view@entry=0x7f5ff69fdfc0, path=path@entry=0x7f5ff69ffbb0, offset=offset@entry=0) at /build/buildd/gtk+3.0-3.14.9/./gtk/gtktreeview.c:7109
 gtk_tree_view_dy_to_top_row (tree_view=0x7f5ff69fdfc0) at /build/buildd/gtk+3.0-3.14.9/./gtk/gtktreeview.c:7151