Version:            (using KDE 4.1.3)
OS:                Linux
Installed from:    Ubuntu Packages

I just received the following crash after clicking "Edit" on an event:

----

Application: Kontact (kontact), signal SIGSEGV
(no debugging symbols found)
(no debugging symbols found)
[Thread debugging using libthread_db enabled]
[New Thread 0x7fc1a85616f0 (LWP 6346)]
[KCrash handler]
#5  0x00007fc1a04875bd in KCal::IncidenceFormatter::extensiveDisplayString (
    incidence=0x25d1f40)
    at /build/buildd/kdepimlibs-4.1.3/kcal/incidenceformatter.cpp:513
#6  0x00007fc18b003619 in KOEventViewer::appendIncidence ()
   from /usr/lib/libkorganizer_eventviewer.so.4
#7  0x00007fc18b0035d0 in KOEventViewer::setIncidence ()
   from /usr/lib/libkorganizer_eventviewer.so.4
#8  0x00007fc18b7b0013 in CalendarView::showIncidence ()
   from /usr/lib/libkorganizerprivate.so.4
#9  0x00007fc18b7bd7b6 in CalendarView::editIncidence ()
   from /usr/lib/libkorganizerprivate.so.4
#10 0x00007fc18b7c07c5 in CalendarView::qt_metacall ()
   from /usr/lib/libkorganizerprivate.so.4
#11 0x00007fc1a80b3134 in QMetaObject::activate ()
   from /usr/lib/libQtCore.so.4
#12 0x00007fc18b47f612 in KOrg::BaseView::editIncidenceSignal ()
   from /usr/lib/libkorganizer_interfaces.so.4
#13 0x00007fc18b47f96c in KOrg::BaseView::qt_metacall ()
   from /usr/lib/libkorganizer_interfaces.so.4
#14 0x00007fc18b81524a in ?? () from /usr/lib/libkorganizerprivate.so.4
#15 0x00007fc18b70cd55 in ?? () from /usr/lib/libkorganizerprivate.so.4
#16 0x00007fc1a80b3134 in QMetaObject::activate ()
   from /usr/lib/libQtCore.so.4
#17 0x00007fc18b80b1d2 in ?? () from /usr/lib/libkorganizerprivate.so.4
#18 0x00007fc18b80ce15 in ?? () from /usr/lib/libkorganizerprivate.so.4
#19 0x00007fc1a80b3134 in QMetaObject::activate ()
   from /usr/lib/libQtCore.so.4
#20 0x00007fc1a63cef57 in QAction::triggered () from /usr/lib/libQtGui.so.4
#21 0x00007fc1a63cf720 in QAction::activate () from /usr/lib/libQtGui.so.4
#22 0x00007fc1a67681ad in ?? () from /usr/lib/libQtGui.so.4
#23 0x00007fc1a6427329 in QWidget::event () from /usr/lib/libQtGui.so.4
#24 0x00007fc1a676a98b in QMenu::event () from /usr/lib/libQtGui.so.4
#25 0x00007fc1a63d4c3d in QApplicationPrivate::notify_helper ()
   from /usr/lib/libQtGui.so.4
#26 0x00007fc1a63dd22a in QApplication::notify () from /usr/lib/libQtGui.so.4
#27 0x00007fc1a771afcb in KApplication::notify (this=0x7fffb05a4b10, 
    receiver=0x1d178c0, event=0x7fffb05a3cd0)
    at /build/buildd/kde4libs-4.1.3/kdeui/kernel/kapplication.cpp:311
#28 0x00007fc1a809ed61 in QCoreApplication::notifyInternal ()
   from /usr/lib/libQtCore.so.4
#29 0x00007fc1a63dc5c8 in QApplicationPrivate::sendMouseEvent ()
   from /usr/lib/libQtGui.so.4
#30 0x00007fc1a6440da4 in ?? () from /usr/lib/libQtGui.so.4
#31 0x00007fc1a643f607 in QApplication::x11ProcessEvent ()
   from /usr/lib/libQtGui.so.4
#32 0x00007fc1a64672c4 in ?? () from /usr/lib/libQtGui.so.4
#33 0x00007fc1a52d9d3b in g_main_context_dispatch ()
   from /usr/lib/libglib-2.0.so.0
#34 0x00007fc1a52dd50d in ?? () from /usr/lib/libglib-2.0.so.0
#35 0x00007fc1a52dd6cb in g_main_context_iteration ()
   from /usr/lib/libglib-2.0.so.0
#36 0x00007fc1a80c715f in QEventDispatcherGlib::processEvents ()
   from /usr/lib/libQtCore.so.4
#37 0x00007fc1a6466a6f in ?? () from /usr/lib/libQtGui.so.4
#38 0x00007fc1a809d682 in QEventLoop::processEvents ()
   from /usr/lib/libQtCore.so.4
#39 0x00007fc1a809d80d in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#40 0x00007fc1a809fcbd in QCoreApplication::exec ()
   from /usr/lib/libQtCore.so.4
#41 0x00000000004048e5 in _start ()
#0  0x00007fc1a5c335f0 in __nanosleep_nocancel () from /lib/libc.so.6