core dump during undo

[jan-ruzicka]

Steps:
did a box split
did undo (Ctrl+z)

Note:
it may have been more undos as the program reacted slowly.

Process: qt-box-editor-1.12dev [29270]
Path: /Users/janruzicka/git-sandbox/qt-box-editor/qt-box-editor-1.12dev.app/Contents/MacOS/qt-box-editor-1.12dev
Identifier: com.yourcompany.qt-box-editor-1.12dev
Version: ??? (???)
Code Type: X86-64 (Native)
Parent Process: launchd [301]

Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x000000000000015b
Crashed Thread: 0 Dispatch queue: com.apple.main-thread

Thread 0 Crashed: Dispatch queue: com.apple.main-thread
0 QtGui 0x00000001008f7a2e QPen::operator==(QPen const&) const + 30
1 QtGui 0x0000000100d51491 QAbstractGraphicsShapeItem::setPen(QPen const&) + 49
2 ...mpany.qt-box-editor-1.12dev 0x0000000100048729 ChildWidget::selectionChanged(QItemSelection const&, QItemSelection const&) + 425
3 ...mpany.qt-box-editor-1.12dev 0x0000000100073b22 ChildWidget::qt_static_metacall(QObject_, QMetaObject::Call, int, void__) + 626
4 QtCore 0x00000001014e866e QMetaObject::activate(QObject_, QMetaObject const_, int, void__) + 1566
5 QtGui 0x0000000100ce4fca QItemSelectionModel::selectionChanged(QItemSelection const&, QItemSelection const&) + 42
6 QtGui 0x0000000100cecb37 QItemSelectionModelPrivate::q_rowsAboutToBeRemoved(QModelIndex const&, int, int) + 1623
7 QtGui 0x0000000100cef166 QItemSelectionModel::qt_static_metacall(QObject, QMetaObject::Call, int, void**) + 342
8 QtCore 0x00000001014e866e QMetaObject::activate(QObject_, QMetaObject const_, int, void**) + 1566
9 QtCore 0x000000010153c30f QAbstractItemModel::rowsAboutToBeRemoved(QModelIndex const&, int, int) + 63
10 QtCore 0x00000001014c3e52 QAbstractItemModel::beginRemoveRows(QModelIndex const&, int, int) + 130
11 QtGui 0x0000000100d26775 QStandardItemModelPrivate::rowsAboutToBeRemoved(QStandardItem_, int, int) + 69
12 QtGui 0x0000000100d29cae QStandardItem::removeRows(int, int) + 110
13 QtGui 0x0000000100d29e85 QStandardItemModel::removeRows(int, int, QModelIndex const&) + 149
14 ...mpany.qt-box-editor-1.12dev 0x000000010002c556 ChildWidget::undoJoin(UndoItem&, bool) + 1046
15 ...mpany.qt-box-editor-1.12dev 0x0000000100045b0e ChildWidget::undo() + 1246
16 ...mpany.qt-box-editor-1.12dev 0x00000001000733d4 MainWindow::qt_static_metacall(QObject_, QMetaObject::Call, int, void**) + 884
17 QtCore 0x00000001014e866e QMetaObject::activate(QObject_, QMetaObject const_, int, void**) + 1566
18 QtGui 0x000000010079ba11 QAction::triggered(bool) + 49
19 QtGui 0x000000010079cda4 QAction::activate(QAction::ActionEvent) + 180
20 QtGui 0x000000010074fb7a -[QCocoaMenuLoader qtDispatcherToQAction:] + 106
21 com.apple.AppKit 0x00007fff8069aeda -[NSApplication sendAction:to:from:] + 95
22 com.apple.AppKit 0x00007fff806bf46a -[NSMenuItem _corePerformAction] + 365
23 com.apple.AppKit 0x00007fff806bf1d4 -[NSCarbonMenuImpl performActionWithHighlightingForItemAtIndex:] + 121
24 com.apple.AppKit 0x00007fff806a4e45 -[NSMenu performKeyEquivalent:] + 272
25 com.apple.AppKit 0x00007fff806a3bed -[NSApplication _handleKeyEquivalent:] + 559
26 com.apple.AppKit 0x00007fff805746b9 -[NSApplication sendEvent:] + 3630
27 QtGui 0x00000001007508b2 -[QNSApplication sendEvent:] + 82
28 com.apple.AppKit 0x00007fff8050b6de -[NSApplication run] + 474
29 QtGui 0x000000010075b3b8 QEventDispatcherMac::processEvents(QFlagsQEventLoop::ProcessEventsFlag) + 1752
30 QtCore 0x00000001014cf0e4 QEventLoop::processEvents(QFlagsQEventLoop::ProcessEventsFlag) + 68
31 QtCore 0x00000001014cf494 QEventLoop::exec(QFlagsQEventLoop::ProcessEventsFlag) + 324
32 QtCore 0x00000001014d1b7c QCoreApplication::exec() + 188
33 ...mpany.qt-box-editor-1.12dev 0x0000000100003956 main + 1078
34 ...mpany.qt-box-editor-1.12dev 0x0000000100003514 start + 52