Should getVersion(program, namespace) return a VersionMap when called using child namespaces of the versioned namespace?

[markcowl]

If a specification is created like this:

@versioned(Parent.Versions)
namespace Parent {
 @service(#{//service metadata...})
 namespace Child {
 // ... operations
 }
  namespace Sibling {
  //non-operation type definitions or operation templates
  }
}

Calling getVersion on namespace Parent.Child or Parent.Sibling it seems that the set of versions specified in the parent namespace should be returned.

Since it is a common pattern for http emitters to look for versioning on the namespace with the @service decorator, this could cause some issues for specs constructed in this way.