Create SAI using consensus crashes ARB

[aboeckma]

• click SAI → Create SAI using … → Consensus
• BOOOOM

Stack trace:

strlen ()
aw_convert_mnemonic (text=0x0, mnemonic=0x1002ea575 \"\")
AW_window::create_toggle_field (this=(AW_window *) 0x1063613f0, var_name=0x1002ea3fe \"tmp/con/which_species\", labeli=0x0, mnemonic=0x1002ea575 \"\")
AP_open_con_expert_window (aw_root=(AW_root *) 0x102b15660)
AW_cb_struct::run_callback (this=(AW_cb_struct *) 0x103da39e0)
AW_window::click_handler (aw_cb_struct=(gpointer) 0x103da39e0)
g_closure_invoke ()
signal_emit_unlocked_R ()
g_signal_emit_valist ()
g_signal_emit ()
gtk_widget_activate ()
gtk_menu_shell_activate_item ()
gtk_menu_shell_button_release ()
gtk_menu_button_release ()
_gtk_marshal_BOOLEAN__BOXED ()
g_closure_invoke ()
signal_emit_unlocked_R ()
g_signal_emit_valist ()
g_signal_emit ()
gtk_widget_event_internal ()
gtk_propagate_event ()
gtk_main_do_event ()
gdk_event_dispatch ()
g_main_context_dispatch ()
g_main_context_iterate ()
g_main_loop_run ()
gtk_main ()
AW_root::main_loop (this=(AW_root *) 0x102b15660)
startup_gui (cl=(NtreeCommandLine &) @0x7fff5fbff9d8: {\n  <Noncopyable> = {<No data fields>}, \n  members of NtreeCommandLine: \n  _vptr$NtreeCommandLine = 0x1003b61b8, \n  arg_count = 0, \n  args = 0x7fff5fbffa80, \n  help_requested = false, \n  do_import = false, \n  macro_name = 0x0\n}, error=(ARB_ERROR &) @0x7fff5fbff9d0: {\n  error = {\n    object = 0x102b282f0\n  }\n})
ARB_main (argc=1, argv=(char **) 0x7fff5fbffa78)
main (argc=1, argv=(char **) 0x7fff5fbffa78)