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

Commencez par ComplexPropertyGetOperationHandler et EdmOperationImportOperationHandler, puis reproduisez la fonction supplémentaire enregistrée sur l’ensemble d’entités XFax. Comparez les opérations générées pour les fonctions qui renvoient des entités avec le comportement attendu de $select et $expand. Le travail est terminé lorsque le comportement du handler est confirmé et corrigé, avec une couverture du cas signalé.