We have an abstract object type from which most documents derive, since they all share the metadata properties subject, date and status. We cannot set default values or aliases for the inherited fields in the derived object types in Schema Designer, so we tried an alias in the abstract type, but when we try to deploy the Designer complains about misalignment on the DB. (Fixed default values in the abstract type work fine.)
The Designer does not forbid use of aliases in abstract object types, nor does the documentation say we shouldn't. What are we doing wrong?