callee is wrong for nested property getters

QScriptValue js_func2(QScriptContext *ctx, QScriptEngine *engine)
{
    qDebug() << "func2 callee is" << ctx->callee().objectId() << ctx->callee().toString();
    return QScriptValue("result of func2");
}

QScriptValue js_func1(QScriptContext *ctx, QScriptEngine *engine)
{
    QScriptValue func2 = engine->newFunction(js_func2);
    qDebug() << "func2 callee should be" << func2.objectId() << ctx->callee().toString();
    QScriptValue obj = engine->newObject();
    obj.setProperty("func2", func2, QScriptValue::PropertyGetter);
    obj.setProperty("name", "Egon");
    return obj;
}

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);
    QScriptEngine engine;

    QScriptValue func1 = engine.newFunction(js_func1);
    engine.globalObject().setProperty("func1", func1, QScriptValue::PropertyGetter);
    qDebug() << engine.evaluate("JSON.stringify(func1)").toString();
    return 0;
}

func2 callee should be 729437188224 "function () {
    [native code]
}"
func2 callee is 729437188096 "function stringify() {
    [native code]
}"
"{"func2":"result of func2","name":"Egon"}"