QtCreator crashes on any editor closed

This is caused by commit 9721a142dd5741864c4b356f7f21080e473dc303
fakevim: import texteditor selection from base text editor as soon as it
is changed using the mouse.

Backtrace:
0 QtGui 0x0053d696 QAbstractScrollArea::viewport() const + 6
1 libFakeVim_debug.dylib 0x12b7540a FakeVim::Internal::FakeVimHandler::eventFilter(QObject*, QEvent*) + 168 (fakevimhandler.cpp:4428)
2 QtCore 0x00bf237f QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) + 143
3 QtGui 0x0012bfd3 QApplicationPrivate::notify_helper(QObject*, QEvent*) + 147
4 QtGui 0x001335ff QApplication::notify(QObject*, QEvent*) + 1039
5 QtCore 0x00b2a8bc QCoreApplication::notifyInternal(QObject*, QEvent*) + 108
6 QtGui 0x001803ce QWidget::~QWidget() + 606
7 libTextEditor_debug.dylib 0x1122b330 TextEditor::BaseTextEditor::~BaseTextEditor() + 114 (basetexteditor.cpp:260)
8 libCppEditor_debug.dylib 0x11a6470a CppEditor::Internal::CPPEditor::~CPPEditor() + 688 (cppeditor.cpp:639)
9 libTextEditor_debug.dylib 0x1120b96e TextEditor::BaseTextEditorEditable::~BaseTextEditorEditable() + 98 (basetexteditor.cpp:5171)
10 libCppEditor_debug.dylib 0x11a8c625 CppEditor::Internal::CPPEditorEditable::~CPPEditorEditable() + 59 (cppeditor.h:161)
11 libCore_debug.dylib 0x107cddfb Core::EditorManager::closeEditors(QList<Core::IEditor*> const&, bool) + 3555 (editormanager.cpp:838)
12 libCore_debug.dylib 0x107cf163 Core::EditorManager::closeAllEditors(bool) + 77 (editormanager.cpp:711)