ODL requires collection items on the RHS of "in" operator to be strings

[gathogojr]

ODL requires collection items on the RHS of in operator to be strings. The following filter expression where DynamicPrimitiveCollectionProperty is a dynamic property is not parsed successfully.

$filter=DynamicPrimitiveCollectionProperty in (19,17)

Assemblies affected

• Microsoft.OData.Core 8.x
• Microsoft.OData.Core 7.x

Reproduce steps

var model = new EdmModel();

var customerEntityType = model.AddEntityType("NS", "Customer", baseType: null, isAbstract: false, isOpen: true);
customerEntityType.AddKeys(customerEntityType.AddStructuralProperty("Id", EdmPrimitiveTypeKind.Int32));

var entityContainer = model.AddEntityContainer("Default", "Container");

var customersEntitySet = entityContainer.AddEntitySet("Customers",
customerEntityType);

var filterClause = new ODataQueryOptionParser(
    model,
    customerEntityType,
    customersEntitySet, new Dictionary<string, string> { { "$filter", "DynamicPrimitiveCollectionProperty in (19,17)" } }).ParseFilter();

Expected result

The filter expression to be parsed successfully.

Actual result

Additional detail

Works if the collection items are strings, e.g., DynamicPrimitiveCollectionProperty in ('19','17')