Crash in TextEditor::Internal::TextEditorWidgetPrivate::~TextEditorWidgetPrivate

0   libTextEditor.dylib             0x10dd72697         TextEditor::Internal::TextEditorWidgetPrivate::~TextEditorWidgetPrivate (texteditor.cpp:980)
1   libTextEditor.dylib             0x10dd72cad         TextEditor::Internal::TextEditorWidgetPrivate::~TextEditorWidgetPrivate (texteditor.cpp:966)
2   libTextEditor.dylib             0x10dd7756f         TextEditor::TextEditorWidget::~TextEditorWidget (texteditor.cpp:1222)
3   libQmlJSEditor.dylib            0x1100ebfb0         QmlJSEditor::QmlJSEditorWidget::~QmlJSEditorWidget (qmljseditor.h:53)
4   libTextEditor.dylib             0x10dd9b675         TextEditor::BaseTextEditor::~BaseTextEditor (texteditor.cpp:7696)
5   libQmlJSEditor.dylib            0x1100ec09d         QmlJSEditor::QmlJSEditor::~QmlJSEditor (qmljseditor.h:132)
6   QtCore                          0x108c9335f         [inlined] qDeleteInEventHandler (qobject.cpp:4778)
7   QtCore                          0x108c9335f         QObject::event (qobject.cpp:1356)
8   QtWidgets                       0x107b25e96         QApplicationPrivate::notify_helper (qapplication.cpp:3409)
9   QtWidgets                       0x107b26ff6         QApplication::notify
10  QtCore                          0x108c4a6d9         QCoreApplication::notifyInternal2 (qcoreapplication.cpp:1067)
11  QtCore                          0x108c4b8ef         [inlined] QCoreApplication::sendEvent (qcoreapplication.cpp:1475)
12  QtCore                          0x108c4b8ef         QCoreApplicationPrivate::sendPostedEvents (qcoreapplication.cpp:1834)
13  QtCore                          0x108c4ad6c         [inlined] QCoreApplication::sendPostedEvents (qcoreapplication.cpp:1693)
14  QtCore                          0x108c4ad6c         [inlined] QCoreApplicationPrivate::execCleanup (qcoreapplication.cpp:1404)
15  QtCore                          0x108c4ad6c         QCoreApplication::exec (qcoreapplication.cpp:1386)
16  Qt Design Studio                0x10628a1a1         main (main.cpp:796)
17  dyld                            0x1134ea51d         start