Major Description
The "LoadSaveTester" class still makes the distinction between "common" and "XML" attributes even though we now simply have "attributes".
I'm seeing a number of instances where attributes got added and are not tested for serialization. This reduces the utility of the tests using this class (quite a few).
However, we know which fields (attributes) are annotated with HopMetadataProperty so we should automatically pick up those at the bare minimum.