Class member initialization with new points to a single instance?

[Gregor Mückl via Digitalmars-d-learn]

Consider the following code:

```d
class Foo {  }
class Bar { Foo foo = new Foo(); }

void main()
{
        Bar b1 = new Bar();
        Bar b2 = new Bar();

        assert(b1.foo != b2.foo);
}
```

The assert fails. This is completely surprising to me. Is this 
actually expected?