three dependencies in binding of Q_OBJECT_BINDABLE_PROPERTY causes crash

#include <QCoreApplication>
#include <QProperty>

class Object : public QObject {
public:
    Object() noexcept
    { v.setBinding([this] { return x.value() + y.value() + z.value(); }); }
    Q_OBJECT_BINDABLE_PROPERTY(Object, int, v)
    Q_OBJECT_BINDABLE_PROPERTY(Object, int, x)
    Q_OBJECT_BINDABLE_PROPERTY(Object, int, y)
    Q_OBJECT_BINDABLE_PROPERTY(Object, int, z)
};

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);
    Object c;
    c.x = 1;
    return a.exec();
}