crash on opening a new document when context pane is open

(gdb) bt
#0  0x00007fffe4e45e60 in QmlJS::Document::qmlProgram() const ()
   from /home/kamm/qtcreator-2.0.91/lib/qtcreator/plugins/Nokia/../../libQmlJS.so.1
#1  0x00007fffe4e6e8bb in QmlJS::Link::populateImportedTypes(QmlJS::Interpreter::TypeEnvironment*, QSharedPointer<QmlJS::Document>) ()
   from /home/kamm/qtcreator-2.0.91/lib/qtcreator/plugins/Nokia/../../libQmlJS.so.1
#2  0x00007fffe4e6f511 in QmlJS::Link::linkImports() ()
   from /home/kamm/qtcreator-2.0.91/lib/qtcreator/plugins/Nokia/../../libQmlJS.so.1
#3  0x00007fffe4e6fc41 in QmlJS::Link::Link(QmlJS::Interpreter::Context*, QSharedPointer<QmlJS::Document> const&, QmlJS::Snapshot const&, QStringList const&) ()
   from /home/kamm/qtcreator-2.0.91/lib/qtcreator/plugins/Nokia/../../libQmlJS.so.1
#4  0x00007fffe4e77160 in ?? ()
   from /home/kamm/qtcreator-2.0.91/lib/qtcreator/plugins/Nokia/../../libQmlJS.so.1
#5  0x00007fffe4e7675a in QmlJS::LookupContext::LookupContext(QSharedPointer<QmlJS::Document>, QmlJS::Snapshot const&, QList<QmlJS::AST::Node*> const&) ()
   from /home/kamm/qtcreator-2.0.91/lib/qtcreator/plugins/Nokia/../../libQmlJS.so.1
#6  0x00007fffe4e76cca in QmlJS::LookupContext::create(QSharedPointer<QmlJS::Document>, QmlJS::Snapshot const&, QList<QmlJS::AST::Node*> const&) ()
   from /home/kamm/qtcreator-2.0.91/lib/qtcreator/plugins/Nokia/../../libQmlJS.so.1
#7  0x00007fffe510d7c6 in QmlJSEditor::Internal::SemanticInfo::lookupContext(QList<QmlJS::AST::Node*> const&) const ()
   from /home/kamm/qtcreator-2.0.91/lib/qtcreator/plugins/Nokia/libQmlJSEditor.so
#8  0x00007fffe510d99a in QmlJSEditor::Internal::QmlJSTextEditor::hideContextPane() ()
   from /home/kamm/qtcreator-2.0.91/lib/qtcreator/plugins/Nokia/libQmlJSEditor.so
#9  0x00007ffff6e59021 in QWidget::event(QEvent*) ()
   from /home/kamm/qtcreator-2.0.91/bin/../lib/libQtGui.so.4
#10 0x00007ffff725a96b in QFrame::event(QEvent*) ()
   from /home/kamm/qtcreator-2.0.91/bin/../lib/libQtGui.so.4
#11 0x00007ffff72ea2d7 in QAbstractScrollArea::viewportEvent(QEvent*) ()
   from /home/kamm/qtcreator-2.0.91/bin/../lib/libQtGui.so.4
#12 0x00007fffed8a035d in TextEditor::BaseTextEditor::viewportEvent(QEvent*) ()
   from /home/kamm/qtcreator-2.0.91/lib/qtcreator/plugins/Nokia/libTextEditor.so
#13 0x00007ffff72ec2b8 in ?? ()