Prior to 5.2+ specific managed types could be excluded from the metamodel generation process by specifying `ignoreUnsupported`; however, since the merging of HEM into Core this is no longer being honored.
In 5.2+, when a dynamic-map based entity-type is found, it is excluded from the metamodel. None of the prior `ignoreUnsupported` or the non-deprecated equivalent are being applied; ergo dynamic-map entity types are just out-right excluded all the time.
The problem this causes is that the metamodel is inconsistent. We still return embeddable managed types that reference that entity-type as the parent; however we don't return the entity type as a managed type.
For 5.2+ we should either
1. Exclude embeddable types that are owned by dynamic-map entity-types since they're excluded.
2. Include dynamic-map entity-types as we did prior to 5.2 and make sure both the deprecated setting `ignoreUnsupported` and its non-deprecated equivalent handle filtering properly.