Segfault при запросе авторизации от другого клиента

При запросе авторизации от другого клиента, не находящегося в контакт-листе, qutIM вылетает.
SVN rev 174, дебаг-сборка, Debian lenny/sid.

Программа прогонялась под valgrind'овским callgrind'ом в момент падения. Бектрейс прилагается:
==15166== Process terminating with default action of signal 11 (SIGSEGV)
==15166== Access not within mapped region at address 0x48
==15166== at 0x4C67F1: contactListTree::youWereAdded(unsigned short) (contactlist.cpp:4817)
==15166== by 0x631AE9: contactListTree::qt_metacall(QMetaObject::Call, int, void**) (moc_contactlist.cpp:334)
==15166== by 0x5E18763: QMetaObject::activate(QObject*, int, int, void**) (qobject.cpp:3010)
==15166== by 0x634EB0: snacChannel::youWereAdded(unsigned short) (moc_snacchannel.cpp:294)
==15166== by 0x586C17: snacChannel::readData(unsigned short) (snacchannel.cpp:217)
==15166== by 0x54EE9A: oscarProtocol::readDataFromSocket() (oscarprotocol.cpp:380)
==15166== by 0x63400A: oscarProtocol::qt_metacall(QMetaObject::Call, int, void**) (moc_oscarprotocol.cpp:130)
==15166== by 0x5E18763: QMetaObject::activate(QObject*, int, int, void**) (qobject.cpp:3010)
==15166== by 0x5A393EE: QAbstractSocketPrivate::canReadNotification() (qabstractsocket.cpp:576)
==15166== by 0x5A2A250: QReadNotifier::event(QEvent*) (qnativesocketengine.cpp:974)
==15166== by 0x502CE5C: QApplicationPrivate::notify_helper(QObject*, QEvent*) (qapplication.cpp:3772)
==15166== by 0x5034B29: QApplication::notify(QObject*, QEvent*) (qapplication.cpp:3739)

Последующие попытки выйти в онлайн также завершаются сегфолтом:
(gdb) run
Starting program: /home/d34df00d/Programming/qutim/build/build/bin/qutIM
[Thread debugging using libthread_db enabled]
[New Thread 0x2ac612cf4c30 (LWP 15526)]
[New Thread 0x40800950 (LWP 15533)]

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x2ac612cf4c30 (LWP 15526)]
0x00000000004d2b98 in contactListTree::getOfflineMessage (this=0xb7ff30)
    at ../protocol/oscar/icq/contactlist.cpp:1618
1618 buddy = new treeBuddyItem(icqUin, statusIconObject->getOfflineIcon(), this, group->offlineList);
(gdb) bt
#0 0x00000000004d2b98 in contactListTree::getOfflineMessage (this=0xb7ff30)
    at ../protocol/oscar/icq/contactlist.cpp:1618
#1 0x0000000000631299 in contactListTree::qt_metacall (this=0xb7ff30, _c=QMetaObject::InvokeMetaMethod,
    _id=24, _a=0x7fff9d5e7b70) at build/moc/moc_contactlist.cpp:295
#2 0x00002ac60e8d8764 in QMetaObject::activate (sender=0xab7420, from_signal_index=<value optimized out>,
    to_signal_index=18, argv=0x15) at kernel/qobject.cpp:3010
#3 0x000000000063505a in snacChannel::getOfflineMessage (this=0xab7420) at build/moc/moc_snacchannel.cpp:246
#4 0x00000000005858bf in snacChannel::getMetaData (this=0xab7420, notAlone=true)
    at ../protocol/oscar/icq/snacchannel.cpp:682
#5 0x0000000000586c79 in snacChannel::readData (this=0xab7420, length=40)
    at ../protocol/oscar/icq/snacchannel.cpp:240
#6 0x000000000054ee9b in oscarProtocol::readDataFromSocket (this=0x9fc070)
    at ../protocol/oscar/icq/oscarprotocol.cpp:380
#7 0x000000000063400b in oscarProtocol::qt_metacall (this=0x9fc070, _c=QMetaObject::InvokeMetaMethod,
    _id=12, _a=0x7fff9d5e7f30) at build/moc/moc_oscarprotocol.cpp:130
#8 0x00002ac60e8d8764 in QMetaObject::activate (sender=0xab2bc0, from_signal_index=<value optimized out>,
    to_signal_index=4, argv=0x15) at kernel/qobject.cpp:3010
#9 0x00002ac60e4f83ef in QAbstractSocketPrivate::canReadNotification (this=0xa87830)
    at socket/qabstractsocket.cpp:576
#10 0x00002ac60e4e9251 in QReadNotifier::event (this=<value optimized out>, e=0x2ac60f8bfc50)
    at socket/qnativesocketengine.cpp:974
#11 0x00002ac60daebe5d in QApplicationPrivate::notify_helper (this=0x9468f0, receiver=0xa666f0,
    e=0x7fff9d5e83b0) at kernel/qapplication.cpp:3772
#12 0x00002ac60daf3b2a in QApplication::notify (this=0x7fff9d5e8830, receiver=0xa666f0, e=0x7fff9d5e83b0)
    at kernel/qapplication.cpp:3739
#13 0x00002ac60e8c4411 in QCoreApplication::notifyInternal (this=0x7fff9d5e8830, receiver=0xa666f0,
    event=0x7fff9d5e83b0) at kernel/qcoreapplication.cpp:587
#14 0x00002ac60e8ecab9 in socketNotifierSourceDispatch (source=0x953ac0)
    at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#15 0x00002ac610376892 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#16 0x00002ac61037a01d in ?? () from /usr/lib/libglib-2.0.so.0
#17 0x00002ac61037a1db in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#18 0x00002ac60e8ec83f in QEventDispatcherGlib::processEvents (this=0x950570, flags=<value optimized out>)
    at kernel/qeventdispatcher_glib.cpp:325
#19 0x00002ac60db7d16f in QGuiEventDispatcherGlib::processEvents (this=0xfe000404,
    flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#20 0x00002ac60e8c2d22 in QEventLoop::processEvents (this=<value optimized out>, flags={i = -1654749744})
    at kernel/qeventloop.cpp:149
#21 0x00002ac60e8c2ead in QEventLoop::exec (this=0x7fff9d5e8610, flags={i = -1654749664})
    at kernel/qeventloop.cpp:200
#22 0x00002ac60e8c537d in QCoreApplication::exec () at kernel/qcoreapplication.cpp:845
#23 0x000000000041ccd8 in main (argc=1, argv=0x7fff9d5e8968) at ../main.cpp:45