Crash in QQmlPropertyCacheCreator<QQmlTypeCompiler>::propertyCacheForObject when a native QQuickItem subclass Q_PROPERTY adds a write accessor

--- a/mscore/qml/nativemenu.h
+++ b/mscore/qml/nativemenu.h
@@ -43 +43 @@ class QmlNativeMenu : public QQuickItem {
-      Q_PROPERTY(bool visible READ visible NOTIFY visibleChanged)
+      Q_PROPERTY(bool visible READ visible WRITE setVisible NOTIFY visibleChanged)
@@ -61 +61,2 @@ class QmlNativeMenu : public QQuickItem {
-      bool visible() const { return _visible; };
+      bool visible() const { return _visible; }
+      void setVisible(bool val);
--- a/mscore/qml/nativemenu.cpp
+++ b/mscore/qml/nativemenu.cpp
@@ -90,0 +91,15 @@ void QmlNativeMenu::popup()
+//---------------------------------------------------------
+//   QmlNativeMenu::setVisible
+//---------------------------------------------------------
+
+void QmlNativeMenu::setVisible(bool val)
+      {
+      if (val == _visible)
+            return;
+
+      if (val)
+            open();
+      else
+            Q_ASSERT(false); // trying to hide visible menu: not implemented and (is supposed to be) unused
+      }
+