Comment 2 for bug 932551

StacktraceTop:
 g_type_check_instance_cast (type_instance=0xffffffffbb87f030, iface_type=139976122685744) at /build/buildd/glib2.0-2.31.16/./gobject/gtype.c:3993
 create_cell (treeview=0x7f4ebb876000, accessible=0x7f4ebb5d1e00, tree=0x7f4ebb638890, node=0x7f4ebbca9b80, column=0xffffffffbb87f030) at /build/buildd/gtk+3.0-3.3.14/./gtk/a11y/gtktreeviewaccessible.c:369
 _gtk_tree_view_accessible_add_state (treeview=0x7f4ebb876000, tree=0x7f4ebb638890, node=0x7f4ebbca9b80, state=<optimized out>) at /build/buildd/gtk+3.0-3.3.14/./gtk/a11y/gtktreeviewaccessible.c:1894
 gtk_tree_view_real_set_cursor (tree_view=0x7f4ebb876000, path=0x7f4ebbbeeb90, flags=<optimized out>) at /build/buildd/gtk+3.0-3.3.14/./gtk/gtktreeview.c:13305
 gtk_tree_view_button_press (widget=0x7f4ebb876000, event=0x7f4ebbaebdc0) at /build/buildd/gtk+3.0-3.3.14/./gtk/gtktreeview.c:3112