Version:           2.2.2 (using KDE 4.2.2)
OS:                Linux
Installed from:    Ubuntu Packages

Umbrello crashes on exit, after editing a simple project with one ERD and one use-case diagram. 

Steps to reproduce:
1. Open the attached file.
2. Do antyhing.
3. Save.
4. Quit.

Program: Umbrello UML Modeller (umbrello), sygnał SIGSEGV

Thread 1 (Thread 0xb5cd58d0 (LWP 7756)):
[KCrash Handler]
#6  0xb64fa18b in __dynamic_cast () from /usr/lib/libstdc++.so.6
#7  0x086ff75b in UMLPackage::removeAssocFromConcepts (this=0x8b5ddc8, assoc=0x8e72a08) at /build/buildd/kdesdk-4.2.2/umbrello/umbrello/package.cpp:87
#8  0x08700607 in UMLPackage::removeObject (this=0x8b5ddc8, pObject=0x8e72a08) at /build/buildd/kdesdk-4.2.2/umbrello/umbrello/package.cpp:154
#9  0x08700dc2 in UMLPackage::removeAllObjects (this=0x8b5ddc8) at /build/buildd/kdesdk-4.2.2/umbrello/umbrello/package.cpp:172
#10 0x0873d1d2 in UMLDoc::closeDocument (this=0x8c16998) at /build/buildd/kdesdk-4.2.2/umbrello/umbrello/umldoc.cpp:296
#11 0x0872984d in UMLApp::queryExit (this=0x8b9d5d0) at /build/buildd/kdesdk-4.2.2/umbrello/umbrello/uml.cpp:878
#12 0xb7a29c04 in KMainWindow::closeEvent (this=0x8b9d5d0, e=0xbfa71e24) at /build/buildd/kde4libs-4.2.2/kdeui/widgets/kmainwindow.cpp:598
#13 0xb6e83383 in QWidget::event () from /usr/lib/libQtGui.so.4
#14 0xb71d7517 in QMainWindow::event () from /usr/lib/libQtGui.so.4
#15 0xb7a29247 in KMainWindow::event (this=0x8b9d5d0, ev=0xbfa71e24) at /build/buildd/kde4libs-4.2.2/kdeui/widgets/kmainwindow.cpp:1094
#16 0xb7a6e04c in KXmlGuiWindow::event (this=0x8b9d5d0, ev=0xbfa71e24) at /build/buildd/kde4libs-4.2.2/kdeui/xmlgui/kxmlguiwindow.cpp:131
#17 0xb6e2b8ec in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4
#18 0xb6e337fa in QApplication::notify () from /usr/lib/libQtGui.so.4
#19 0xb79462ad in KApplication::notify (this=0xbfa725c0, receiver=0x8b9d5d0, event=0xbfa71e24) at /build/buildd/kde4libs-4.2.2/kdeui/kernel/kapplication.cpp:307
#20 0xb6978e61 in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4
#21 0xb6e864b3 in QWidgetPrivate::close_helper () from /usr/lib/libQtGui.so.4
#22 0xb6e8b60b in QApplication::x11ClientMessage () from /usr/lib/libQtGui.so.4
#23 0xb6e9c6ec in QApplication::x11ProcessEvent () from /usr/lib/libQtGui.so.4
#24 0xb6ec67aa in ?? () from /usr/lib/libQtGui.so.4
#25 0xb5f02718 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#26 0xb5f05dc3 in ?? () from /usr/lib/libglib-2.0.so.0
#27 0xb5f05f81 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#28 0xb69a3478 in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4
#29 0xb6ec5ea5 in ?? () from /usr/lib/libQtGui.so.4
#30 0xb697752a in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#31 0xb69776ea in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#32 0xb6979da5 in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#33 0xb6e2b767 in QApplication::exec () from /usr/lib/libQtGui.so.4
#34 0x086dc835 in main (argc=3, argv=0xbfa72734) at /build/buildd/kdesdk-4.2.2/umbrello/umbrello/main.cpp:110