k3b crashed when folders opened in K3b get moved (K3b::MetaItemModel::parent)

[Khorne]

Binary package hint: k3b

1) Karmic Alpha
2) K3b1.66.0~alpha2-0ubuntu5

It crashed a couple of minutes after burning DVD (Data). At this time I was copying 3,4 GB of files from one partition to another but I'm not sure if its corelated.

ProblemType: Crash
Architecture: i386
Date: Fri Aug 14 16:44:44 2009
DistroRelease: Ubuntu 9.10
ExecutablePath: /usr/bin/k3b
Package: k3b 1.66.0~alpha2-0ubuntu5
ProcCmdline: k3b
ProcEnviron:
 LANG=pl_PL.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-5.24-generic
Signal: 4
SourcePackage: k3b
Stacktrace:
 #0 0x02fff229 in vtable for QToolBarLayout () from /usr/lib/libQtGui.so.4
 #1 0x0815da77 in _start ()
StacktraceTop:
 vtable for QToolBarLayout () from /usr/lib/libQtGui.so.4
 _start ()
Title: k3b crashed with SIGILL in vtable for QToolBarLayout()
Uname: Linux 2.6.31-5-generic i686
UserGroups: adm admin cdrom dialout lpadmin netdev plugdev sambashare

[Apport retracing service (apport)]

StacktraceTop:vtable for QToolBarLayout () from /usr/lib/libQtGui.so.4
K3b::MetaItemModel::parent (this=0xa143080,
QAbstractItemModelPrivate::rowsAboutToBeRemoved (
QAbstractItemModel::beginRemoveRows (this=0xa143080,
K3b::MetaItemModel::slotRowsRemoved (this=0xa143080,