HiddenFor generates Required for Nullable values

I have a property that is a nullable value (eg Nullable).

Using HiddenFor and EditorFor generates different results for the required

```
public class Test
{
public Nullable Property {get; set;}
}
```

```
@model Test

@Html.HiddenFor(m => m.Property)
@Html.EditorFor(m => m.Property)
```

The result html look like this
```

```