I did /keyx, and the other end crashed - his qca is 2.0.2 -, and then he handed me the following BT:

Application: Konversation (konversation), signal: Segmentation fault
[KCrash Handler]
#7  0xb7824e97 in QCA::Provider::Context::provider() const () from
/usr/lib/libqca.so.2
#8  0x082167ab in Konversation::Cipher::parseInitKeyX (this=0xa557ab0,
key=...) at /kde/source/konversation/src/cipher.cpp:177
#9  0x080e3936 in Server::parseInitKeyX (this=0x9f407c0, sender=...,
remoteKey=...) at /kde/source/konversation/src/irc/server.cpp:3857
#10 0x0813d841 in InputFilter::parseClientCommand (this=0x9f4087c,
prefix=..., command=..., parameterList=...) at
/kde/source/konversation/src/irc/inputfilter.cpp:567
#11 0x0813ecb7 in InputFilter::parseLine (this=0x9f4087c, line=...) at
/kde/source/konversation/src/irc/inputfilter.cpp:152
#12 0x080e2d59 in Server::processIncomingData (this=0x9f407c0) at
/kde/source/konversation/src/irc/server.cpp:964
#13 0x080e6764 in Server::qt_metacall (this=0x9f407c0,
_c=QMetaObject::InvokeMetaMethod, _id=86, _a=0xbfabf8d8) at
/kde/build/konversation/src/server.moc:409
#14 0xb6b518a5 in QMetaObject::metacall (object=0x21,
cl=QMetaObject::InvokeMetaMethod, idx=90, argv=0xbfabf8d8) at
/kde/source/qt-copy/src/corelib/kernel/qmetaobject.cpp:237
#15 0xb6b603a7 in QMetaObject::activate (sender=0x9f40810, m=0xb6c67f64,
local_signal_index=0, argv=0x0) at
/kde/source/qt-copy/src/corelib/kernel/qobject.cpp:3293
#16 0xb6bb2137 in QTimer::timeout (this=0x9f40810) at
.moc/release-shared/moc_qtimer.cpp:134
#17 0xb6b680de in QTimer::timerEvent (this=0x9f40810, e=0xbfabfe9c) at
/kde/source/qt-copy/src/corelib/kernel/qtimer.cpp:271
#18 0xb6b5d154 in QObject::event (this=0x9f40810, e=0xbfabfe9c) at
/kde/source/qt-copy/src/corelib/kernel/qobject.cpp:1212
#19 0xb5fe5e8c in QApplicationPrivate::notify_helper (this=0x9bd9ed8,
receiver=0x9f40810, e=0xbfabfe9c) at
/kde/source/qt-copy/src/gui/kernel/qapplication.cpp:4304
#20 0xb5fed44b in QApplication::notify (this=0xbfac017c,
receiver=0x9f40810, e=0xbfabfe9c) at
/kde/source/qt-copy/src/gui/kernel/qapplication.cpp:3708
#21 0xb727b55b in KApplication::notify (this=0xbfac017c,
receiver=0x9f40810, event=0xbfabfe9c) at
/kde/source/kdelibs/kdeui/kernel/kapplication.cpp:302
#22 0xb6b4c51b in QCoreApplication::notifyInternal (this=0xbfac017c,
receiver=0x9f40810, event=0xbfabfe9c) at
/kde/source/qt-copy/src/corelib/kernel/qcoreapplication.cpp:704
#23 0xb6b7c0ee in QCoreApplication::sendEvent (this=0x9be80ac) at
../../include/QtCore/../../../../source/qt-copy/src/corelib/kernel/qcoreapplication.h:215
#24 QTimerInfoList::activateTimers (this=0x9be80ac) at
/kde/source/qt-copy/src/corelib/kernel/qeventdispatcher_unix.cpp:603
#25 0xb6b78717 in timerSourceDispatch (source=0x9be8500) at
/kde/source/qt-copy/src/corelib/kernel/qeventdispatcher_glib.cpp:184
#26 idleTimerSourceDispatch (source=0x9be8500) at
/kde/source/qt-copy/src/corelib/kernel/qeventdispatcher_glib.cpp:231
#27 0xb563c2e5 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#28 0xb5640000 in ?? () from /lib/libglib-2.0.so.0
#29 0xb5640198 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#30 0xb6b783e1 in QEventDispatcherGlib::processEvents (this=0x9bd0780,
flags=...) at
/kde/source/qt-copy/src/corelib/kernel/qeventdispatcher_glib.cpp:412
#31 0xb60a2615 in QGuiEventDispatcherGlib::processEvents (this=0x9bd0780,
flags=...) at
/kde/source/qt-copy/src/gui/kernel/qguieventdispatcher_glib.cpp:204
#32 0xb6b4ab6a in QEventLoop::processEvents (this=0xbfac0110, flags=...)
at /kde/source/qt-copy/src/corelib/kernel/qeventloop.cpp:149
#33 0xb6b4afb2 in QEventLoop::exec (this=0xbfac0110, flags=...) at
/kde/source/qt-copy/src/corelib/kernel/qeventloop.cpp:201
#34 0xb6b4d6c9 in QCoreApplication::exec () at
/kde/source/qt-copy/src/corelib/kernel/qcoreapplication.cpp:981
#35 0xb5fe5f27 in QApplication::exec () at
/kde/source/qt-copy/src/gui/kernel/qapplication.cpp:3583
#36 0x080a80e2 in main (argc=1, argv=0xbfac0594) at
/kde/source/konversation/src/main.cpp:104