(solved) 0.64.1 Dev / Select outline layer : Segfault

after creating outline with any of square / spline / polygon tool
select outline layer
segfault !

Development version: Revision: 20130908 Branch: master Revision ID: f67a9a (Merge #42)
(i’m building last commit Fix missing ‘filename’ replacement to ‘identifier.filename’. )
EDIT : with last commit no more segfault

#0 0x08645ef2 in synfig::ParamDesc::get_exponential (this=0x1c) at /home/haricot/Sources/Synfig/synfig/install/include/synfig-0.0/synfig/paramdesc.h:216
#1 0x08635a76 in studio::Duckmatic::add_to_ducks (this=0x8fab834, value_desc=…, canvas_view=…, transform_stack=…, param_desc=0x1c, multiple=0) at duckmatic.cpp:1486
#2 0x0863a4c5 in studio::Duckmatic::add_to_ducks (this=0x8fab834, value_desc=…, canvas_view=…, transform_stack=…, param_desc=0x9258058, multiple=0) at duckmatic.cpp:2066
#3 0x08634cb4 in studio::Duckmatic::add_ducks_layers (this=0x8fab834, canvas=…, selected_layer_set=…, canvas_view=…, transform_stack=…) at duckmatic.cpp:1417
#4 0x08608e3e in studio::CanvasView::rebuild_ducks (this=0x8f21210) at canvasview.cpp:3020
#5 0x08626778 in sigc::bound_mem_functor0<void, studio::CanvasView>::operator() (this=0x92fc0c8) at /usr/include/sigc+±2.0/sigc++/functors/mem_fun.h:1787
#6 0x08623d8c in sigc::adaptor_functor<sigc::bound_mem_functor0<void, studio::CanvasView> >::operator() (this=0x92fc0c4) at /usr/include/sigc+±2.0/sigc++/adaptors/adaptor_trait.h:251
#7 0x08625dae in sigc::bind_return_functor<bool, sigc::bound_mem_functor0<void, studio::CanvasView> >::operator() (this=0x92fc0c0) at /usr/include/sigc+±2.0/sigc++/adaptors/bind_return.h:173
#8 0x08622c09 in sigc::internal::slot_call0<sigc::bind_return_functor<bool, sigc::bound_mem_functor0<void, studio::CanvasView> >, bool>::call_it (rep=0x92fc0a8) at /usr/include/sigc+±2.0/sigc++/functors/slot.h:103
#9 0xb6d670e4 in ?? () from /usr/lib/i386-linux-gnu/libglibmm-2.4.so.1
#10 0xb673b1d7 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#11 0xb673a483 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#12 0xb673a820 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#13 0xb673acfb in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#14 0xb6ecbad0 in gtk_main () from /usr/lib/i386-linux-gnu/libgtk-x11-2.0.so.0
#15 0xb75da264 in Gtk::Main::run_impl() () from /usr/lib/libgtkmm-2.4.so.1
#16 0xb75dac9f in Gtk::Main::run() () from /usr/lib/libgtkmm-2.4.so.1
#17 0x083c2482 in main (argc=0, argv=0xbffffb04) at main.cpp:108