Сегфолт при переходе с одного из трех режимов на расширенный режим установки #349

Thread 1 "ubinstall-gtk" received signal SIGSEGV, Segmentation fault.
0x0000555555562428 in yon_advanced_part_save_part ()
0x0000555555562739 in yon_advanced_save ()
0x00005555555650e6 in yon_page_get_next ()
0x00005555555656f4 in on_page_next_clicked ()
0x00007ffff7021732 in ?? () from /usr/lib/libgobject-2.0.so.0
0x00007ffff7021842 in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
0x00007ffff7021904 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
0x00007ffff78767e9 in ?? () from /usr/lib/libgtk-3.so.0
0x00007ffff7021732 in ?? () from /usr/lib/libgobject-2.0.so.0
0x00007ffff7021842 in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
0x00007ffff7021904 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
0x00007ffff78765b5 in ?? () from /usr/lib/libgtk-3.so.0
0x00007ffff7836155 in ?? () from /usr/lib/libgtk-3.so.0
0x00007ffff7021732 in ?? () from /usr/lib/libgobject-2.0.so.0
0x00007ffff7021842 in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
0x00007ffff7021904 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
0x00007ffff7950d77 in ?? () from /usr/lib/libgtk-3.so.0
0x00007ffff7004d56 in g_cclosure_marshal_VOID__BOXEDv ()
   from /usr/lib/libgobject-2.0.so.0
0x00007ffff7021732 in ?? () from /usr/lib/libgobject-2.0.so.0
0x00007ffff7021842 in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
0x00007ffff7021904 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
0x00007ffff794b1f8 in ?? () from /usr/lib/libgtk-3.so.0
0x00007ffff79524cb in ?? () from /usr/lib/libgtk-3.so.0
0x00007ffff7952e63 in ?? () from /usr/lib/libgtk-3.so.0
0x00007ffff790e444 in gtk_event_controller_handle_event ()
   from /usr/lib/libgtk-3.so.0
0x00007ffff7af2f57 in ?? () from /usr/lib/libgtk-3.so.0
0x00007ffff7834829 in ?? () from /usr/lib/libgtk-3.so.0
0x00007ffff7021732 in ?? () from /usr/lib/libgobject-2.0.so.0
0x00007ffff7021842 in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
0x00007ffff7021904 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
0x00007ffff7b01cd5 in ?? () from /usr/lib/libgtk-3.so.0
0x00007ffff799bc6b in ?? () from /usr/lib/libgtk-3.so.0
0x00007ffff799c797 in gtk_main_do_event () from /usr/lib/libgtk-3.so.0
0x00007ffff76e6b77 in ?? () from /usr/lib/libgdk-3.so.0
0x00007ffff773f438 in ?? () from /usr/lib/libgdk-3.so.0
0x00007ffff70aca89 in ?? () from /usr/lib/libglib-2.0.so.0
0x00007ffff710e9b7 in ?? () from /usr/lib/libglib-2.0.so.0
0x00007ffff70ad787 in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
0x00007ffff799a2bf in gtk_main () from /usr/lib/libgtk-3.so.0
0x000055555555d333 in main ()

``` Thread 1 "ubinstall-gtk" received signal SIGSEGV, Segmentation fault. 0x0000555555562428 in yon_advanced_part_save_part () 0x0000555555562739 in yon_advanced_save () 0x00005555555650e6 in yon_page_get_next () 0x00005555555656f4 in on_page_next_clicked () 0x00007ffff7021732 in ?? () from /usr/lib/libgobject-2.0.so.0 0x00007ffff7021842 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0 0x00007ffff7021904 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0 0x00007ffff78767e9 in ?? () from /usr/lib/libgtk-3.so.0 0x00007ffff7021732 in ?? () from /usr/lib/libgobject-2.0.so.0 0x00007ffff7021842 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0 0x00007ffff7021904 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0 0x00007ffff78765b5 in ?? () from /usr/lib/libgtk-3.so.0 0x00007ffff7836155 in ?? () from /usr/lib/libgtk-3.so.0 0x00007ffff7021732 in ?? () from /usr/lib/libgobject-2.0.so.0 0x00007ffff7021842 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0 0x00007ffff7021904 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0 0x00007ffff7950d77 in ?? () from /usr/lib/libgtk-3.so.0 0x00007ffff7004d56 in g_cclosure_marshal_VOID__BOXEDv () from /usr/lib/libgobject-2.0.so.0 0x00007ffff7021732 in ?? () from /usr/lib/libgobject-2.0.so.0 0x00007ffff7021842 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0 0x00007ffff7021904 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0 0x00007ffff794b1f8 in ?? () from /usr/lib/libgtk-3.so.0 0x00007ffff79524cb in ?? () from /usr/lib/libgtk-3.so.0 0x00007ffff7952e63 in ?? () from /usr/lib/libgtk-3.so.0 0x00007ffff790e444 in gtk_event_controller_handle_event () from /usr/lib/libgtk-3.so.0 0x00007ffff7af2f57 in ?? () from /usr/lib/libgtk-3.so.0 0x00007ffff7834829 in ?? () from /usr/lib/libgtk-3.so.0 0x00007ffff7021732 in ?? () from /usr/lib/libgobject-2.0.so.0 0x00007ffff7021842 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0 0x00007ffff7021904 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0 0x00007ffff7b01cd5 in ?? () from /usr/lib/libgtk-3.so.0 0x00007ffff799bc6b in ?? () from /usr/lib/libgtk-3.so.0 0x00007ffff799c797 in gtk_main_do_event () from /usr/lib/libgtk-3.so.0 0x00007ffff76e6b77 in ?? () from /usr/lib/libgdk-3.so.0 0x00007ffff773f438 in ?? () from /usr/lib/libgdk-3.so.0 0x00007ffff70aca89 in ?? () from /usr/lib/libglib-2.0.so.0 0x00007ffff710e9b7 in ?? () from /usr/lib/libglib-2.0.so.0 0x00007ffff70ad787 in g_main_loop_run () from /usr/lib/libglib-2.0.so.0 0x00007ffff799a2bf in gtk_main () from /usr/lib/libgtk-3.so.0 0x000055555555d333 in main () ```

Ошибка №2 из #346
Не заметил сразу, поэтому тут закрываю.