Class member initialization with new points to a single instance?

[Gregor Mückl]

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?