kdesudo crashed after closing the started application

Application that crashed: kdesu
Version of the application: 3.1
KDE Version: 4.3.2 (KDE 4.3.2)
Qt Version: 4.6.0-tp1
Operating System: Linux 2.6.31-14-generic i686
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
1 - I started kwrite through krunner with the kdesu command
2 - After closing kwrite the crash information appeared with the following backtrace:

 -- Backtrace:
Application: KdeSudo (kdesu), signal: Segmentation fault
[KCrash Handler]
#6 0x00bfe542 in QHash<int, QDnotifyFileSystemWatcherEngine::Directory>::freeData (this=0x85321f8, paths=..., files=0x6de4000, directories=0xfca6d4)
    at ../../include/QtCore/../../src/corelib/tools/qhash.h:558
#7 QHash<int, QDnotifyFileSystemWatcherEngine::Directory>::detach_helper (this=0x85321f8, paths=..., files=0x6de4000, directories=0xfca6d4)
    at ../../include/QtCore/../../src/corelib/tools/qhash.h:573
#8 QHash<int, QDnotifyFileSystemWatcherEngine::Directory>::detach (this=0x85321f8, paths=..., files=0x6de4000, directories=0xfca6d4) at ../../include/QtCore/../../src/corelib/tools/qhash.h:289
#9 QHash<int, QDnotifyFileSystemWatcherEngine::Directory>::remove (this=0x85321f8, paths=..., files=0x6de4000, directories=0xfca6d4) at ../../include/QtCore/../../src/corelib/tools/qhash.h:771
#10 QDnotifyFileSystemWatcherEngine::removePaths (this=0x85321f8, paths=..., files=0x6de4000, directories=0xfca6d4) at io/qfilesystemwatcher_dnotify.cpp:358
#11 0x0109baa9 in ?? () from /usr/lib/libQtGui.so.4
#12 0x06de695b in QMultiInputContext (this=0x8472c70) at qmultiinputcontext.cpp:89
#13 0x06de825e in QMultiInputContextPlugin::create (this=0x84d7e98, key=...) at qmultiinputcontextplugin.cpp:83
#14 0x016a0708 in QListWidget::dropEvent (this=0x8407dcc, event=0xbfdb320c) at itemviews/qlistwidget.cpp:1815
#15 0x010a0c2a in waitpid@plt () from /usr/lib/libQtGui.so.4
#16 0x08407dcc in ?? ()
#17 0x010e9f88 in ?? () at ../../include/QtCore/../../src/corelib/global/qglobal.h:2154 from /usr/lib/libQtGui.so.4
#18 0x010ed29b in ?? () at kernel/qpalette.cpp:592 from /usr/lib/libQtGui.so.4
#19 0x01131fed in QChar (priv=0x844d5e0, display=0x1, visual=3078539256, colormap=3218812760) at ../../include/QtCore/../../src/corelib/tools/qchar.h:374
#20 qt_init (priv=0x844d5e0, display=0x1, visual=3078539256, colormap=3218812760) at kernel/qapplication_x11.cpp:2513
#21 0x010f1881 in QShortcutEntry (this=0x844d5e0, owner=0xa89fc0, key=..., context=21709456) at kernel/qshortcutmap.cpp:74
#22 QList<QShortcutEntry>::node_construct (this=0x844d5e0, owner=0xa89fc0, key=..., context=21709456) at ../../include/QtCore/../../src/corelib/tools/qlist.h:351
#23 QList<QShortcutEntry>::insert (this=0x844d5e0, owner=0xa89fc0, key=..., context=21709456) at ../../include/QtCore/../../src/corelib/tools/qlist.h:421
#24 QShortcutMap::addShortcut (this=0x844d5e0, owner=0xa89fc0, key=..., context=21709456) at kernel/qshortcutmap.cpp:173
#25 0x014b42c1 in QCalendarWidget (this=0x852e2e0, parent=0x1918ff4) at widgets/qcalendarwidget.cpp:2109
#26 0x003bf134 in ~KLineEdit (this=0x14b4299, __in_chrg=<value optimized out>) at ../../kdeui/widgets/klineedit.cpp:215
#27 0x00c0846f in QList<QString>::append (this=0x84a98c0, settings=0x84c4fc0) at ../../include/QtCore/../../src/corelib/tools/qlist.h:474
#28 QStringList::operator<< (this=0x84a98c0, settings=0x84c4fc0) at ../../include/QtCore/../../src/corelib/tools/qstringlist.h:86
#29 QLibraryPrivate::isPlugin (this=0x84a98c0, settings=0x84c4fc0) at plugin/qlibrary.cpp:727
#30 0x010f1d4b in QShortcutMap::find (this=0x84c4fc0, e=0x84d5038) at kernel/qshortcutmap.cpp:445
#31 0x00c0846f in QList<QString>::append (this=0x0, settings=0x84d4710) at ../../include/QtCore/../../src/corelib/tools/qlist.h:474
#32 QStringList::operator<< (this=0x0, settings=0x84d4710) at ../../include/QtCore/../../src/corelib/tools/qstringlist.h:86
#33 QLibraryPrivate::isPlugin (this=0x0, settings=0x84d4710) at plugin/qlibrary.cpp:727
#34 0x010f185b in QList<QShortcutEntry>::node_construct (this=0x84d4710, owner=0x0, key=..., context=3218813416) at ../../include/QtCore/../../src/corelib/tools/qlist.h:351
#35 QList<QShortcutEntry>::insert (this=0x84d4710, owner=0x0, key=..., context=3218813416) at ../../include/QtCore/../../src/corelib/tools/qlist.h:421
#36 QShortcutMap::addShortcut (this=0x84d4710, owner=0x0, key=..., context=3218813416) at kernel/qshortcutmap.cpp:173
#37 0x0158d184 in QScrollArea::event (this=0x84d4710, e=0xa89fc0) at widgets/qscrollarea.cpp:301
#38 0x002484c4 in ~KDialog (this=0x84d4710, __in_chrg=<value optimized out>) at ../../kdeui/dialogs/kdialog.cpp:197
#39 0x0026ca75 in ~KPasswordDialog (this=0x84d4710, __in_chrg=<value optimized out>) at ../../kdeui/dialogs/kpassworddialog.cpp:82
#40 0x0804edd0 in _start ()