Quassel IRC

Probably happened after a ping timeout from the network. I was asleep, so no idea of what exactly happened, but here's the backtrace:
ASSERT: "!_ircChannel && ircChannel" in file /home/bas/AUR/quassel-git/src/quassel-build/src/client/networkmodel.cpp, line 533
Quassel IRC: "0.9-pre" "5717b69f3585ad9102d47bdef32e2ac83bd18b83"

1. 0 quasselclient 0x00000000006fb18b Quassel::logBacktrace(QString const&)
2. 1 quasselclient 0x00000000006e2432 Quassel::handleSignal(int)
3. 2 libc.so.6 0x00007f02ded67cb0 0x0000000000000000
4. 3 libc.so.6 0x00007f02ded67c35 gsignal
5. 4 libc.so.6 0x00007f02ded690b8 abort
6. 5 libQtCore.so.4 0x00007f02e26de484 qt_message_output(QtMsgType, char const*)
7. 6 libQtCore.so.4 0x00007f02e26de63f 0x0000000000000000
8. 7 libQtCore.so.4 0x00007f02e26de7e4 qFatal(char const*, ...)
9. 8 quasselclient 0x00000000006a3a8d ChannelBufferItem::attachIrcChannel(IrcChannel*)
10. 9 quasselclient 0x00000000006a07b4 NetworkItem::attachIrcChannel(IrcChannel*)
11. 10 quasselclient 0x00000000006b8964 0x0000000000000000
12. 11 libQtCore.so.4 0x00007f02e27fa891 QMetaObject::activate(QObject*, QMetaObject const*, int, void**)
13. 12 quasselclient 0x0000000000702db9 Network::ircChannelAdded(IrcChannel*)
14. 13 quasselclient 0x00000000006d7594 Network::newIrcChannel(QString const&, QMap<QString, QVariant> const&)
15. 14 quasselclient 0x0000000000702e5e Network::addIrcChannel(QString const&)
16. 15 quasselclient 0x0000000000701ff8 0x0000000000000000
17. 16 quasselclient 0x000000000070244c Network::qt_metacall(QMetaObject::Call, int, void**)
18. 17 quasselclient 0x00000000006eb6ae SignalProxy::invokeSlot(QObject*, int, QList<QVariant> const&, QVariant&)
19. 18 quasselclient 0x00000000006ea1ed SignalProxy::handleSync(SignalProxy::AbstractPeer*, QList<QVariant>)
20. 19 quasselclient 0x00000000006e982d SignalProxy::receivePeerSignal(SignalProxy::AbstractPeer*, SignalProxy::RequestType const&, QList<QVariant> const&)
21. 20 quasselclient 0x00000000006e96cf SignalProxy::receivePackedFunc(SignalProxy::AbstractPeer*, QVariant const&)
22. 21 quasselclient 0x00000000006eb967 SignalProxy::dataAvailable()
23. 22 quasselclient 0x0000000000703f38 0x0000000000000000
24. 23 libQtCore.so.4 0x00007f02e27fa891 QMetaObject::activate(QObject*, QMetaObject const*, int, void**)
25. 24 libQtNetwork.so.4 0x00007f02e1757e94 0x0000000000000000
26. 25 libQtNetwork.so.4 0x00007f02e1752289 0x0000000000000000
27. 26 libQtCore.so.4 0x00007f02e27fa891 QMetaObject::activate(QObject*, QMetaObject const*, int, void**)
28. 27 libQtNetwork.so.4 0x00007f02e173198f 0x0000000000000000
29. 28 libQtNetwork.so.4 0x00007f02e1739501 0x0000000000000000
30. 29 libQtGui.so.4 0x00007f02e1b72af4 QApplicationPrivate::notify_helper(QObject*, QEvent*)
31. 30 libQtGui.so.4 0x00007f02e1b77973 QApplication::notify(QObject*, QEvent*)
32. 31 libQtCore.so.4 0x00007f02e27e69ec QCoreApplication::notifyInternal(QObject*, QEvent*)
33. 32 libQtCore.so.4 0x00007f02e28150a7 0x0000000000000000
34. 33 libglib-2.0.so.0 0x00007f02de24a37c g_main_context_dispatch
35. 34 libglib-2.0.so.0 0x00007f02de24a798 0x0000000000000000
36. 35 libglib-2.0.so.0 0x00007f02de24a854 g_main_context_iteration
37. 36 libQtCore.so.4 0x00007f02e2815a3f QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
38. 37 libQtGui.so.4 0x00007f02e1c1636e 0x0000000000000000
39. 38 libQtCore.so.4 0x00007f02e27e57d2 QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
40. 39 libQtCore.so.4 0x00007f02e27e5a27 QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
41. 40 libQtCore.so.4 0x00007f02e27ea585 QCoreApplication::exec()
42. 41 quasselclient 0x0000000000517b50 main
43. 42 libc.so.6 0x00007f02ded54455 __libc_start_main
44. 43 quasselclient 0x00000000005174f9 0x0000000000000000