or 4

If you set a breakpoint on https://github.com/grails/grails-data-mapping/blob/ef1730a42bc515cfb96cf9175d81e344d8a08a61/grails-datastore-core/src/main/groovy/org/grails/datastore/mapping/reflect/FieldEntityAccess.java#L425, you see that the field accessor is only called for the

Author

association, not the

name

property