Action and Operation do not expose $select and $expand over entity types

Action and Operation do not expose $select and $expand over entity types while this is possible for /entity/propertyOfComplexType

Assemblies affected

Microsoft.OpenApi.OData 1.7.5

Steps to reproduce

Register additional function for entity set:

        var fax = builder.EntityType<XFax>();
        fax.Collection.Function(nameof("GetByNumber"))
            .ReturnsFromEntitySet<XFax>("Fax")
            .NonNullable()
            .Parameter<string>("number").NonNullable();

Expected result

GetByNumber should have both $select and $expand operations because XFax is Entity type

Actual result

No operations available

Additional detail

I see that ComplexPropertyGetOperationHandler has the following logic:

1. Expose $top, $skip, $search, $filter $count for a collection
2. Try to expose $select and $expand

On the contrary EdmOperationImportOperationHandler has the following logic:

1. Expose $top, $skip, $search, $filter $count for a collection
2. Expose $select and $expand if 1. is true

Therefore I can't get $select and $expand for Function or Operation. Is it something explicitly prohibited by OData?
How can I do this in a different way?

P.S. I think as a workaround I can make alternate key. But I don't see any examples for OData 8

Bắt đầu với ComplexPropertyGetOperationHandler và EdmOperationImportOperationHandler, sau đó tái hiện hàm bổ sung được đăng ký trên entity set XFax. So sánh các operation được tạo cho những hàm trả về entity với hành vi $select và $expand dự kiến. Hoàn thành khi đã xác nhận và sửa hành vi của handler, đồng thời có coverage cho trường hợp được báo cáo.