Version:            (using KDE 4.1.3)
OS:                Linux
Installed from:    Debian testing/unstable Packages

kopete already joined to some room, then it room added to contact list with other client (miranda) and kopete crash:

Applicatio: Kopete (kopete), signal SIGSEGV
[Thread debugging using libthread_db enabled]
[New Thread 0xb58806f0 (LWP 3919)]
[New Thread 0xb29f4b90 (LWP 3922)]
[KCrash handler]
#6  Kopete::PropertyContainer::hasProperty (this=0x0, key=@0x9331098)
    at /tmp/buildd/kdenetwork-4.1.3/kopete/libkopete/kopetepropertycontainer.cpp:111
#7  0xb7ed8db0 in Kopete::PropertyContainer::removeProperty (this=0x0, 
    tmpl=@0x932814c)
    at /tmp/buildd/kdenetwork-4.1.3/kopete/libkopete/kopetepropertycontainer.cpp:163
#8  0xb35380c5 in JabberAccount::slotContactUpdated (this=0x9355ab0, 
    item=@0x933a0a8)
    at /tmp/buildd/kdenetwork-4.1.3/kopete/protocols/jabber/jabberaccount.cpp:1390
#9  0xb353f273 in JabberAccount::qt_metacall (this=0x9355ab0, 
    _c=QMetaObject::InvokeMetaMethod, _id=28, _a=0xbffa5f5c)
    at /tmp/buildd/kdenetwork-4.1.3/obj-i486-linux-gnu/kopete/protocols/jabber/jabberaccount.moc:165
#10 0xb66debd0 in QMetaObject::activate (sender=0x935b468, 
    from_signal_index=14, to_signal_index=14, argv=0xbffa5f5c)
    at kernel/qobject.cpp:3031
#11 0xb66df952 in QMetaObject::activate (sender=0x935b468, m=0xb35a6d64, 
    local_signal_index=10, argv=0xbffa5f5c) at kernel/qobject.cpp:3101
#12 0xb358b683 in JabberClient::contactUpdated (this=0x935b468, 
    _t1=@0x933a0a8)
    at /tmp/buildd/kdenetwork-4.1.3/obj-i486-linux-gnu/kopete/protocols/jabber/jabberclient.moc:272
#13 0xb358b6b4 in JabberClient::slotContactUpdated (this=0x935b468, 
    item=@0x933a0a8)
    at /tmp/buildd/kdenetwork-4.1.3/kopete/protocols/jabber/jabberclient.cpp:1090
#14 0xb358e6fd in JabberClient::qt_metacall (this=0x935b468, 
    _c=QMetaObject::InvokeMetaMethod, _id=34, _a=0xbffa607c)
    at /tmp/buildd/kdenetwork-4.1.3/obj-i486-linux-gnu/kopete/protocols/jabber/jabberclient.moc:184
#15 0xb66debd0 in QMetaObject::activate (sender=0x952aac0, 
    from_signal_index=8, to_signal_index=8, argv=0xbffa607c)
    at kernel/qobject.cpp:3031
#16 0xb66df952 in QMetaObject::activate (sender=0x952aac0, m=0xb34b6170, 
    local_signal_index=4, argv=0xbffa607c) at kernel/qobject.cpp:3101
#17 0xb33ff8e3 in XMPP::Client::rosterItemUpdated (this=0x952aac0, 
    _t1=@0x933a0a8)
    at /tmp/buildd/kdenetwork-4.1.3/obj-i486-linux-gnu/kopete/protocols/jabber/libiris/moc_xmpp_client.cpp:183
#18 0xb345fbc4 in XMPP::Client::importRosterItem (this=0x952aac0, 
    item=@0x97836f0)
    at /tmp/buildd/kdenetwork-4.1.3/kopete/protocols/jabber/libiris/iris/xmpp-im/client.cpp:938
#19 0xb345ff74 in XMPP::Client::importRoster (this=0x952aac0, r=@0xbffa6374)
    at /tmp/buildd/kdenetwork-4.1.3/kopete/protocols/jabber/libiris/iris/xmpp-im/client.cpp:895
#20 0xb3460404 in XMPP::Client::prRoster (this=0x952aac0, r=@0xbffa6374)
    at /tmp/buildd/kdenetwork-4.1.3/kopete/protocols/jabber/libiris/iris/xmpp-im/client.cpp:848
#21 0xb3403acc in XMPP::Client::qt_metacall (this=0x952aac0, 
    _c=QMetaObject::InvokeMetaMethod, _id=27, _a=0xbffa632c)
    at /tmp/buildd/kdenetwork-4.1.3/obj-i486-linux-gnu/kopete/protocols/jabber/libiris/moc_xmpp_client.cpp:144
#22 0xb66debd0 in QMetaObject::activate (sender=0x96351b0, 
    from_signal_index=7, to_signal_index=7, argv=0xbffa632c)
    at kernel/qobject.cpp:3031
#23 0xb66df952 in QMetaObject::activate (sender=0x96351b0, m=0xb34b61e0, 
    local_signal_index=0, argv=0xbffa632c) at kernel/qobject.cpp:3101
#24 0xb33ff2b3 in XMPP::JT_PushRoster::roster (this=0x96351b0, 
    _t1=@0xbffa6374)
    at /tmp/buildd/kdenetwork-4.1.3/obj-i486-linux-gnu/kopete/protocols/jabber/libiris/moc_xmpp_tasks.cpp:214
#25 0xb3487fc5 in XMPP::JT_PushRoster::take (this=0x96351b0, e=@0xbffa6554)
    at /tmp/buildd/kdenetwork-4.1.3/kopete/protocols/jabber/libiris/iris/xmpp-im/xmpp_tasks.cpp:528
#26 0xb34ab42c in XMPP::Task::take (this=0x952ac30, x=@0xbffa6554)
    at /tmp/buildd/kdenetwork-4.1.3/kopete/protocols/jabber/libiris/iris/xmpp-im/xmpp_task.cpp:140
#27 0xb345cd6a in XMPP::Client::distribute (this=0x952aac0, x=@0xbffa6554)
    at /tmp/buildd/kdenetwork-4.1.3/kopete/protocols/jabber/libiris/iris/xmpp-im/client.cpp:556
#28 0xb345d677 in XMPP::Client::streamReadyRead (this=0x952aac0)
    at /tmp/buildd/kdenetwork-4.1.3/kopete/protocols/jabber/libiris/iris/xmpp-im/client.cpp:503
#29 0xb3403b6e in XMPP::Client::qt_metacall (this=0x952aac0, 
    _c=QMetaObject::InvokeMetaMethod, _id=20, _a=0xbffa6618)
    at /tmp/buildd/kdenetwork-4.1.3/obj-i486-linux-gnu/kopete/protocols/jabber/libiris/moc_xmpp_client.cpp:137
#30 0xb66debd0 in QMetaObject::activate (sender=0x9402e30, 
    from_signal_index=6, to_signal_index=6, argv=0x0)
    at kernel/qobject.cpp:3031
#31 0xb66df952 in QMetaObject::activate (sender=0x9402e30, m=0xb34b64d0, 
    local_signal_index=2, argv=0x0) at kernel/qobject.cpp:3101
#32 0xb33fddc7 in XMPP::Stream::readyRead (this=0x9402e30)
    at /tmp/buildd/kdenetwork-4.1.3/obj-i486-linux-gnu/kopete/protocols/jabber/libiris/moc_xmpp_stream.cpp:97
#33 0xb3443b4d in XMPP::ClientStream::doReadyRead (this=0x9402e30)
    at /tmp/buildd/kdenetwork-4.1.3/kopete/protocols/jabber/libiris/iris/xmpp-core/stream.cpp:900
#34 0xb3403606 in XMPP::ClientStream::qt_metacall (this=0x9402e30, 
    _c=QMetaObject::InvokeMetaMethod, _id=25, _a=0xbffa6718)
    at /tmp/buildd/kdenetwork-4.1.3/obj-i486-linux-gnu/kopete/protocols/jabber/libiris/moc_xmpp_clientstream.cpp:132
#35 0xb66debd0 in QMetaObject::activate (sender=0x97ab988, 
    from_signal_index=4, to_signal_index=4, argv=0x0)
    at kernel/qobject.cpp:3031
#36 0xb66df952 in QMetaObject::activate (sender=0x97ab988, m=0xb67ac0a8, 
    local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3101
#37 0xb66e4f27 in QSingleShotTimer::timeout (this=0x97ab988)
    at .moc/release-shared/qtimer.moc:74
#38 0xb66e504c in QSingleShotTimer::timerEvent (this=0x97ab988)
    at kernel/qtimer.cpp:294
#39 0xb66d96af in QObject::event (this=0x97ab988, e=0xbffa6bac)
    at kernel/qobject.cpp:1120
#40 0xb695879c in QApplicationPrivate::notify_helper (this=0x913af58, 
    receiver=0x97ab988, e=0xbffa6bac) at kernel/qapplication.cpp:3803
#41 0xb696061e in QApplication::notify (this=0xbffa6e3c, receiver=0x97ab988, 
    e=0xbffa6bac) at kernel/qapplication.cpp:3393
#42 0xb787107d in KApplication::notify (this=0xbffa6e3c, receiver=0x97ab988, 
    event=0xbffa6bac)
    at /tmp/buildd/kde4libs-4.1.3/kdeui/kernel/kapplication.cpp:311
#43 0xb66ca0d1 in QCoreApplication::notifyInternal (this=0xbffa6e3c, 
    receiver=0x97ab988, event=0xbffa6bac) at kernel/qcoreapplication.cpp:587
#44 0xb66f8031 in QTimerInfoList::activateTimers (this=0x912d90c)
    at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:209
#45 0xb66f4680 in timerSourceDispatch (source=0x912d8d8)
    at kernel/qeventdispatcher_glib.cpp:160
#46 0xb5d67348 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#47 0xb5d6a9e3 in ?? () from /usr/lib/libglib-2.0.so.0
#48 0x0912ce90 in ?? ()
#49 0x00000000 in ?? ()
#0  0xffffe424 in __kernel_vsyscall ()