Comment 3 for bug 1807548

Reproduced on Ubuntu 18.04 with Inkscape 1.0alpha (3a1866ab31, 2019-03-25)

#0 0x00007ffff4f87fd9 in () at /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
#1 0x00007ffff4e22858 in () at /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
#2 0x00007ffff4e38353 in () at /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
#3 0x00007ffff4e23bbc in () at /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
#4 0x00007ffff4e3828c in () at /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
#5 0x00007ffff4e382e5 in () at /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
#6 0x00007ffff4e24532 in () at /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
#7 0x00007ffff22af988 in g_type_create_instance () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#8 0x00007ffff2290748 in () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#9 0x00007ffff2291ee5 in g_object_new_with_properties () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#10 0x00007ffff2292961 in g_object_new () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#11 0x00007ffff4e4060a in () at /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
#12 0x00007ffff501ae48 in () at /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
#13 0x00007ffff22af988 in g_type_create_instance () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#14 0x00007ffff2290748 in () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#15 0x00007ffff229211e in g_object_newv () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#16 0x00007fffefb931ca in Glib::Object::Object(Glib::ConstructParams const&) () at /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1
#17 0x00007ffff5d366a6 in Gtk::Object::Object(Glib::ConstructParams const&) () at /usr/lib/x86_64-linux-gnu/libgtkmm-3.0.so.1
#18 0x00007ffff5d0ae22 in Gtk::Widget::Widget(Glib::ConstructParams const&) () at /usr/lib/x86_64-linux-gnu/libgtkmm-3.0.so.1
#19 0x00007ffff5c6b075 in Gtk::Container::Container(Glib::ConstructParams const&) () at /usr/lib/x86_64-linux-gnu/libgtkmm-3.0.so.1
#20 0x00007ffff5c4b906 in Gtk::Box::Box(Glib::ConstructParams const&) () at /usr/lib/x86_64-linux-gnu/libgtkmm-3.0.so.1
#21 0x00007ffff5c8ddee in Gtk::VBox::VBox(bool, int) () at /usr/lib/x86_64-linux-gnu/libgtkmm-3.0.so.1
#22 0x00007ffff6c1a36b in Inkscape::Extension::Extension::autogui(SPDocument*, Inkscape::XML::Node*, sigc::signal<void, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil>*) () at /usr/local/bin/../lib/inkscape/libinkscape_base.so
#23 0x00007ffff6c1c400 in Inkscape::Extension::Input::prefs(char const*) () at /usr/local/bin/../lib/inkscape/libinkscape_base.so
#24 0x00007ffff6c1f3d9 in Inkscape::Extension::open(Inkscape::Extension::Extension*, char const*) () at /usr/local/bin/../lib/inkscape/libinkscape_base.so
#25 0x00007ffff6d037a7 in ink_file_open(Glib::RefPtr<Gio::File> const&, bool&) () at /usr/local/bin/../lib/inkscape/libinkscape_base.so
#26 0x00007ffff74e7202 in InkscapeApplication::document_open(Glib::RefPtr<Gio::File> const&) () at /usr/local/bin/../lib/inkscape/libinkscape_base.so
#27 0x00007ffff74f38c9 in ConcreteInkscapeApplication<Gio::Application>::on_open(std::vector<Glib::RefPtr<Gio::File>, std::allocator<Glib::RefPtr<Gio::File> > > const&, Glib::ustring const&) () at /usr/local/bin/../lib/inkscape/libinkscape_base.so
#28 0x00007ffff567d478 in Gio::Application_Class::open_callback(_GApplication*, _GFile**, int, char const*) () at /usr/lib/x86_64-linux-gnu/libgiomm-2.4.so.1
#29 0x00007fffea000dae in ffi_call_unix64 () at /usr/lib/x86_64-linux-gnu/libffi.so.6
#30 0x00007fffea00071f in ffi_call () at /usr/lib/x86_64-linux-gnu/libffi.so.6
#31 0x00007ffff228bced in g_cclosure_marshal_generic_va () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#32 0x00007ffff228b346 in () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#33 0x00007ffff22a69ff in g_signal_emit_valist () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#34 0x00007ffff22a712f in g_signal_emit () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#35 0x00007ffff2571b64 in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#36 0x00007ffff567a6ab in Gio::Application::local_command_line_vfunc(char**&, int&) () at /usr/lib/x86_64-linux-gnu/libgiomm-2.4.so.1
#37 0x00007ffff567a8ed in Gio::Application_Class::local_command_line_vfunc_callback(_GApplication*, char***, int*) ()
    at /usr/lib/x86_64-linux-gnu/libgiomm-2.4.so.1
#38 0x00007ffff2571da6 in g_application_run () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#39 0x00007ffff454bb97 in __libc_start_main (main=
    0x555555554ba0 <main>, argc=4, argv=0x7fffffffd9c8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffffffd9b8)
    at ../csu/libc-start.c:310
        result = <optimized out>
        unwind_buf =
              {cancel_jmp_buf = {{jmp_buf = {0, -8353301261873366444, 93824992234560, 140737488345536, 0, 0, -2790462003075401132, -2790438734006764972}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x7ffff7de5733 <_dl_init+259>, 0x7ffff7bb4bf8}, data = {prev = 0x0, cleanup = 0x0, canceltype = -136423629}}}
        not_first_call = <optimized out>
#40 0x0000555555554c6a in _start ()