reactiveui/ReactiveUI — pull request #133 by xpaulbettsx (2012-12-05 04:19:17+00:00)
Title: Handle Nullable <=> Non-Nullable value types correctly

Check out #131 for more details - binding (both two-way and one-way) between a `T` and a `T?` should have the following properties:

* If value is non-null, just do the conversion
* If the nullable side gets set to `null`, the non-nullable side doesn't get set (i.e. treat it as a formatting error)