When copying/pasting an object with a mesh fill, the new object appears fully transparent (which looks like a bug even without a crash).
When undoing the copy/paste, it sometimes crashes.
Seems relatively reproducible if pasting and undoing a few times, and resizing the objects randomly (not sure if resizing is needed to reproduce the crash).
Possibly related to bug 1651096.
Using inkscape-0.92.3.
----
inkscape: /usr/include/boost/optional/optional.hpp:1116: boost::optional<T>::pointer_const_type boost::optional<T>::operator->() const [with T = Geom::Rect; boost::optional<T>::pointer_const_type = const Geom::Rect*]: Assertion `this->is_initialized()' failed.
Thread 1 "inkscape" received signal SIGABRT, Aborted.
__GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
51 ../sysdeps/unix/sysv/linux/raise.c: No such file or directory.
(gdb) bt
#0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
#1 0x00007ffff0010b1d in __GI_abort () at abort.c:90
#2 0x00007ffff0006757 in __assert_fail_base (fmt=<optimized out>, assertion=assertion@entry=0x5555563d8be8 "this->is_initialized()", file=file@entry=0x5555563d9588 "/usr/include/boost/optional/optional.hpp",
line=line@entry=1116,
function=function@entry=0x5555563fb1a0 <_ZZNK5boost8optionalIN4Geom4RectEEptEvE19__PRETTY_FUNCTION__> "boost::optional<T>::pointer_const_type boost::optional<T>::operator->() const [with T = Geom::Rect; boost::optional<T>::pointer_const_type = const Geom::Rect*]") at assert.c:92
#3 0x00007ffff0006812 in __GI___assert_fail (assertion=assertion@entry=0x5555563d8be8 "this->is_initialized()", file=file@entry=0x5555563d9588 "/usr/include/boost/optional/optional.hpp",
line=line@entry=1116,
function=function@entry=0x5555563fb1a0 <_ZZNK5boost8optionalIN4Geom4RectEEptEvE19__PRETTY_FUNCTION__> "boost::optional<T>::pointer_const_type boost::optional<T>::operator->() const [with T = Geom::Rect; boost::optional<T>::pointer_const_type = const Geom::Rect*]") at assert.c:101
#4 0x0000555555c2fbb8 in boost::optional<Geom::Rect>::operator-> (this=0x55555ae4e550) at /usr/include/boost/optional/optional.hpp:1116
#5 SPMeshGradient::pattern_new (this=0x55555ae3ca10, bbox=..., opacity=1) at sp-mesh-gradient.cpp:256
#6 0x0000555555cf06ab in NRStyle::prepareFill (this=this@entry=0x55555ae4e5c8, dc=..., paintbox=..., pattern=<optimized out>) at display/nr-style.cpp:353
#7 0x0000555555cc5804 in Inkscape::DrawingShape::_renderItem (this=0x55555ae4e490, dc=..., area=..., flags=0, stop_at=0x0) at display/drawing-shape.cpp:242
#8 0x0000555555cc2248 in Inkscape::DrawingItem::render (this=this@entry=0x55555ae4e490, dc=..., area=..., flags=flags@entry=0, stop_at=stop_at@entry=0x0) at display/drawing-item.cpp:762
#9 0x0000555555cbdc95 in Inkscape::DrawingGroup::_renderItem (this=0x55555a8d4c00, dc=..., area=..., flags=0, stop_at=<optimized out>) at display/drawing-group.cpp:98
#10 0x0000555555cc2511 in Inkscape::DrawingItem::render (this=this@entry=0x55555a8d4c00, dc=..., area=..., flags=flags@entry=0, stop_at=stop_at@entry=0x0) at display/drawing-item.cpp:813
#11 0x0000555555cbdc95 in Inkscape::DrawingGroup::_renderItem (this=0x55555adc9440, dc=..., area=..., flags=0, stop_at=<optimized out>) at display/drawing-group.cpp:98
#12 0x0000555555cc2511 in Inkscape::DrawingItem::render (this=this@entry=0x55555adc9440, dc=..., area=..., flags=flags@entry=0, stop_at=stop_at@entry=0x0) at display/drawing-item.cpp:813
#13 0x0000555555cbdc95 in Inkscape::DrawingGroup::_renderItem (this=0x5555589bc800, dc=..., area=..., flags=0, stop_at=<optimized out>) at display/drawing-group.cpp:98
#14 0x0000555555cc2511 in Inkscape::DrawingItem::render (this=0x5555589bc800, dc=..., area=..., flags=0, stop_at=0x0) at display/drawing-item.cpp:813
#15 0x0000555555cbc1d1 in Inkscape::Drawing::render (this=0x5555589ce1f0, dc=..., area=..., flags=4026593104, flags@entry=0) at display/drawing.cpp:173
#16 0x0000555555ca73b8 in sp_canvas_arena_render (item=<optimized out>, buf=<optimized out>) at display/canvas-arena.cpp:199
#17 0x0000555555cfa31a in SPCanvasGroup::render (item=<optimized out>, buf=0x7fffffffbfd0) at display/sp-canvas.cpp:858
#18 0x0000555555cfa31a in SPCanvasGroup::render (item=<optimized out>, buf=0x7fffffffbfd0) at display/sp-canvas.cpp:858
#19 0x0000555555cfc26e in SPCanvas::paintSingleBuffer (this=this@entry=0x555558349680, paint_rect=..., canvas_rect=...) at display/sp-canvas.cpp:1573
#20 0x0000555555cfc3b9 in SPCanvas::paintRectInternal (this=0x555558349680, setup=0x7fffffffc130, this_rect=...) at display/sp-canvas.cpp:1674
#21 0x0000555555cfc786 in SPCanvas::paintRect (this=this@entry=0x555558349680, xx0=<optimized out>, yy0=<optimized out>, xx1=<optimized out>, yy1=<optimized out>) at display/sp-canvas.cpp:1787
#22 0x0000555555cfca68 in SPCanvas::paint (this=this@entry=0x555558349680) at display/sp-canvas.cpp:1926
#23 0x0000555555cfcc80 in SPCanvas::doUpdate (this=0x555558349680) at display/sp-canvas.cpp:1960
#24 0x00005555561ab673 in Inkscape::UI::Tools::NodeTool::selection_changed (this=0x55555b1b5490, sel=0x5555576aae60) at ui/tools/node-tool.cpp:448
#25 0x0000555555bc73f5 in sigc::internal::signal_emit1<void, Inkscape::Selection*, sigc::nil>::emit (_A_a1=@0x7fffffffc3d0: 0x5555576aae60, impl=0x5555589c4a70) at /usr/include/sigc++-2.0/sigc++/signal.h:1041
#26 sigc::signal1<void, Inkscape::Selection*, sigc::nil>::emit (this=<optimized out>, _A_a1=@0x7fffffffc3d0: 0x5555576aae60) at /usr/include/sigc++-2.0/sigc++/signal.h:2951
#27 Inkscape::Selection::_emitChanged (this=<optimized out>, persist_selection_context=<optimized out>) at selection.cpp:110
#28 0x0000555555c4595d in sigc::internal::signal_emit1<void, SPObject*, sigc::nil>::emit (_A_a1=@0x7fffffffc458: 0x55555ae57550, impl=0x55555ae20fa0) at /usr/include/sigc++-2.0/sigc++/signal.h:1041
#29 sigc::signal1<void, SPObject*, sigc::nil>::emit (this=0x55555ae575e0, _A_a1=@0x7fffffffc458: 0x55555ae57550) at /usr/include/sigc++-2.0/sigc++/signal.h:2951
#30 SPObject::releaseReferences (this=this@entry=0x55555ae57550) at sp-object.cpp:833
#31 0x0000555555c46073 in SPObject::detach (this=<optimized out>, object=0x55555ae57550) at sp-object.cpp:597
#32 0x0000555555c4615a in SPObject::remove_child (this=<optimized out>, child=<optimized out>) at sp-object.cpp:678
#33 0x0000555555c2c0d6 in SPLPEItem::remove_child (this=<optimized out>, child=<optimized out>) at sp-lpe-item.cpp:771
#34 0x0000555555c1b569 in SPGroup::remove_child (this=0x55555a6fec00, child=<optimized out>) at sp-item-group.cpp:133
#35 0x0000555555f6aab2 in Inkscape::XML::CompositeNodeObserver::notifyChildRemoved (this=this@entry=0x55555781d6e0, node=..., child=..., prev=0x5555578280d0) at xml/composite-node-observer.cpp:49
#36 0x0000555555f78663 in Inkscape::XML::SimpleNode::removeChild (this=0x55555781d690, generic_child=<optimized out>) at xml/simple-node.cpp:479
#37 0x0000555555f7c50c in Inkscape::XML::Event::undoOne (observer=..., this=0x5555577df000) at xml/event.h:103
#38 Inkscape::XML::undo_log_to_observer (observer=..., log=<optimized out>) at xml/event.cpp:131
#39 sp_repr_undo_log (log=<optimized out>) at xml/event.cpp:149
#40 0x0000555555b49b13 in Inkscape::DocumentUndo::undo (doc=0x55555766e580) at document-undo.cpp:265
#41 0x0000555555bb0f98 in sp_undo (desktop=0x5555576a8c00) at selection-chemistry.cpp:1228
#42 0x0000555555dcbaea in sigc::internal::signal_emit0<void, sigc::nil>::emit (impl=0x5555586e5ec0) at /usr/include/sigc++-2.0/sigc++/signal.h:794
#43 sigc::signal0<void, sigc::nil>::emit (this=<optimized out>) at /usr/include/sigc++-2.0/sigc++/signal.h:2800
#44 sp_action_perform (action=<optimized out>) at helper/action.cpp:136
#45 0x0000555555bdb36d in sp_shortcut_invoke (shortcut=<optimized out>, view=0x5555576a8c00) at shortcuts.cpp:74
#46 0x00007ffff5ef203d in sigc::slot1<bool, _GdkEventKey*>::operator() (_A_a1=@0x7fffffffc728: 0x55555a253480, this=0x555558c25848) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:643
#47 (anonymous namespace)::Widget_signal_key_release_event_callback (self=<optimized out>, p0=<optimized out>, data=0x555558c25840)
at /var/tmp/portage/dev-cpp/gtkmm-2.24.5/work/gtkmm-2.24.5/gtk/gtkmm/widget.cc:1549
#48 0x00007ffff50173cc in _gtk_marshal_BOOLEAN__BOXED (closure=0x555559021a40, return_value=0x7fffffffc8c0, n_param_values=<optimized out>, param_values=0x7fffffffc920, invocation_hint=<optimized out>,
marshal_data=<optimized out>) at gtkmarshalers.c:86
#49 0x00007ffff1574f25 in g_closure_invoke (closure=0x555559021a40, return_value=return_value@entry=0x7fffffffc8c0, n_param_values=2, param_values=param_values@entry=0x7fffffffc920,
invocation_hint=invocation_hint@entry=0x7fffffffc8a0) at /var/tmp/portage/dev-libs/glib-2.52.3/work/glib-2.52.3/gobject/gclosure.c:804
#50 0x00007ffff1586fe3 in signal_emit_unlocked_R (node=node@entry=0x555556b4d070, detail=detail@entry=0, instance=instance@entry=0x555559007ac0, emission_return=emission_return@entry=0x7fffffffca40,
instance_and_params=instance_and_params@entry=0x7fffffffc920) at /var/tmp/portage/dev-libs/glib-2.52.3/work/glib-2.52.3/gobject/gsignal.c:3705
#51 0x00007ffff158f61f in g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7fffffffcaf0)
at /var/tmp/portage/dev-libs/glib-2.52.3/work/glib-2.52.3/gobject/gsignal.c:3401
#52 0x00007ffff158ff67 in g_signal_emit (instance=instance@entry=0x555559007ac0, signal_id=<optimized out>, detail=detail@entry=0)
at /var/tmp/portage/dev-libs/glib-2.52.3/work/glib-2.52.3/gobject/gsignal.c:3447
#53 0x00007ffff512f25c in gtk_widget_event_internal (widget=widget@entry=0x555559007ac0, event=event@entry=0x55555a253480) at /var/tmp/portage/x11-libs/gtk+-2.24.31-r1/work/gtk+-2.24.31/gtk/gtkwidget.c:5010
#54 0x00007ffff512f527 in IA__gtk_widget_event (widget=widget@entry=0x555559007ac0, event=event@entry=0x55555a253480) at /var/tmp/portage/x11-libs/gtk+-2.24.31-r1/work/gtk+-2.24.31/gtk/gtkwidget.c:4807
#55 0x00007ffff5015c6f in IA__gtk_propagate_event (widget=0x555559007ac0, event=0x55555a253480) at /var/tmp/portage/x11-libs/gtk+-2.24.31-r1/work/gtk+-2.24.31/gtk/gtkmain.c:2475
#56 0x00007ffff5015f4b in IA__gtk_main_do_event (event=0x55555a253480) at /var/tmp/portage/x11-libs/gtk+-2.24.31-r1/work/gtk+-2.24.31/gtk/gtkmain.c:1696
#57 0x00007ffff4c8c35c in gdk_event_dispatch (source=<optimized out>, callback=<optimized out>, user_data=<optimized out>)
at /var/tmp/portage/x11-libs/gtk+-2.24.31-r1/work/gtk+-2.24.31/gdk/x11/gdkevents-x11.c:2425
#58 0x00007ffff129b5c7 in g_main_dispatch (context=0x555556b2be40) at /var/tmp/portage/dev-libs/glib-2.52.3/work/glib-2.52.3/glib/gmain.c:3234
#59 g_main_context_dispatch (context=context@entry=0x555556b2be40) at /var/tmp/portage/dev-libs/glib-2.52.3/work/glib-2.52.3/glib/gmain.c:3899
#60 0x00007ffff129b830 in g_main_context_iterate (context=0x555556b2be40, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>)
at /var/tmp/portage/dev-libs/glib-2.52.3/work/glib-2.52.3/glib/gmain.c:3972
#61 0x00007ffff129bb52 in g_main_loop_run (loop=0x5555597c11a0) at /var/tmp/portage/dev-libs/glib-2.52.3/work/glib-2.52.3/glib/gmain.c:4168
#62 0x00007ffff5014fc7 in IA__gtk_main () at /var/tmp/portage/x11-libs/gtk+-2.24.31-r1/work/gtk+-2.24.31/gtk/gtkmain.c:1268
#63 0x0000555555afe83b in sp_main_gui (argc=<optimized out>, argv=<optimized out>) at main.cpp:1164
#64 0x00007fffefffa011 in __libc_start_main (main=0x555555ae2770 <main(int, char**)>, argc=1, argv=0x7fffffffd0f8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>,
stack_end=0x7fffffffd0e8) at ../csu/libc-start.c:308
#65 0x0000555555afc7aa in _start ()
