kopete crashed with SIGSEGV in QString::length()

[Kayosiii]

Binary package hint: kdenetwork

Ubuntu karmic (development branch)
kopete 4:4.2.96-0ubuntu1

This is a crash on startup... application does not start at all.
looks like it might be related to the Facebook plugin..

ProblemType: Crash
Architecture: amd64
Date: Wed Jul 22 14:46:24 2009
DistroRelease: Ubuntu 9.10
ExecutablePath: /usr/bin/kopete
NonfreeKernelModules: nvidia
Package: kopete 4:4.2.96-0ubuntu1
ProcCmdline: /usr/bin/kopete -caption Kopete
ProcEnviron:
 LANG=en_AU.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-2.17-generic
SegvAnalysis:
 Segfault happened at: 0x7f2c25d8555b <_ZNK7QStringltERKS_+11>: mov (%rdi),%rax
 PC (0x7f2c25d8555b) ok
 source "(%rdi)" (0xfffffff0) not located in a known VMA region (needed readable region)!
 destination "%rax" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: kdenetwork
StacktraceTop:
 QString::length (this=0xfffffff0, other=...)
 QString::operator< (this=0xfffffff0, other=...) at tools/qstring.cpp:1973
 ?? () from /usr/lib/kde4/kopete_facebook.so
 Kopete::MetaContact::slotProtocolLoaded(Kopete::Protocol*) () from /usr/lib/libkopete.so.4
 Kopete::MetaContact::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libkopete.so.4
Title: kopete crashed with SIGSEGV in QString::length()
Uname: Linux 2.6.31-2-generic x86_64
UserGroups: adm admin audio cdrom dialout lpadmin netdev plugdev sambashare video

[Apport retracing service (apport)]

StacktraceTop:?? ()
?? ()
?? ()

[Apport retracing service (apport)]

StacktraceTop:QString::operator<(QString const&) const ()
?? () from /usr/lib/kde4/kopete_facebook.so
Kopete::MetaContact::slotProtocolLoaded(Kopete::Protocol*) () from /usr/lib/libkopete.so.4
Kopete::MetaContact::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libkopete.so.4
QMetaObject::activate(QObject*, int, int, void**) ()