strange behavior for operator* in nested template class

struct Foo { int foo; };

Foo global_t;

template<class T>
struct Outer
{
    struct Nested
    {
        // doesn't work
        const T &operator*() const
        {
            T *t = new T;
            return *t;
        }
        // doesn't work
        const T &operator*() const
        {
            return T();
        }
        // doesn't work
        const T &operator*() const
        {
            return global_t;
        }
        // partially works (see QTCREATORBUG-9006)
        const T &operator*() const
        {
            return local_t;
        }
        T local_t;
    };
};

void bug()
{
    Outer<Foo>::Nested nested;
    (*nested).foo; // Not highlighted
}