Comment 3 for bug 307195

Tested again on Ubuntu 9.04, build 21348.

Backtrace:
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Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0xb6663740 (LWP 31044)]
0x0842c5ce in Inkscape::UI::Dialogs::LayersPanel::_toggled (this=0xb3e3bb0, str=@0xbfe1a9d8, targetCol=1)
    at ui/dialog/layers.cpp:491
491 newValue? _("Unhide layer") : _("Hide layer"));
(gdb) backtrace
#0 0x0842c5ce in Inkscape::UI::Dialogs::LayersPanel::_toggled (this=0xb3e3bb0, str=@0xbfe1a9d8, targetCol=1)
    at ui/dialog/layers.cpp:491
#1 0x0843378d in sigc::internal::slot_call1<sigc::bind_functor<-1, sigc::bound_mem_functor2<void, Inkscape::UI::Dialogs::LayersPanel, Glib::ustring const&, int>, int, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil>, void, Glib::ustring const&>::call_it (rep=0xb204fc8, a_1=@0xbfe1a9d8) at /usr/include/sigc++-2.0/sigc++/functors/mem_fun.h:1917
#2 0x08492d48 in Inkscape::UI::Widget::ImageToggler::activate_vfunc (this=0xd060000, event=0xb2f4008, path=@0xbfe1a9d8)
    at /usr/include/sigc++-2.0/sigc++/signal.h:690
#3 0xb7d37bb5 in Gtk::CellRenderer_Class::activate_vfunc_callback () from /usr/lib/libgtkmm-2.4.so.1
#4 0xb76e9658 in IA__gtk_cell_renderer_activate (cell=0xcff7ea8, event=0xb2f4008, widget=0xb1f4ba0, path=0xcb963a0 "0",
    background_area=0xbfe1aae4, cell_area=0xbfe1aaf4, flags=0) at /build/buildd/gtk+2.0-2.16.1/gtk/gtkcellrenderer.c:621
#5 0xb78a56a1 in gtk_tree_view_column_cell_process_action (tree_column=0xcc1a4a8, window=0x0, background_area=0xbfe1ac00,
    cell_area=0xbfe1abf0, flags=0, action=2, expose_area=0x0, focus_rectangle=0x0, editable_widget=0xbfe1ac18, event=0xb2f4008,
    path_string=0xcb963a0 "0") at /build/buildd/gtk+2.0-2.16.1/gtk/gtktreeviewcolumn.c:2879
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