ODataQueryContext does not support unbound functions (OperationImportSegment)

[Xriuk]

Assemblies affected
ASP.NET Core OData 8.2.4

Describe the bug

.../odata/MyFunction()?$select=*

A query which selects all the properties with the wildcard selector on a collection of entities returned from an unbound function throws an exception:

   in Microsoft.OData.Edm.EdmUtil.CheckArgumentNull[T](T value, String parameterName) in Microsoft.OData.Edm\EdmUtil.cs: riga 363
   in Microsoft.OData.Edm.ExtensionMethods.<StructuralProperties>d__106.MoveNext() in Microsoft.OData.Edm\ExtensionMethods.cs: riga 1012
   in Microsoft.AspNetCore.OData.Query.Validator.SelectExpandQueryValidator.ValidateWildcardSelectItem(WildcardSelectItem wildCardSelectItem, SelectExpandValidatorContext validatorContext) in D:\a\1\s\src\Microsoft.AspNetCore.OData\Query\Validator\SelectExpandQueryValidator.cs: riga 338
   in Microsoft.AspNetCore.OData.Query.Validator.SelectExpandQueryValidator.ValidateSelectExpand(SelectExpandClause selectExpandClause, SelectExpandValidatorContext validatorContext) in D:\a\1\s\src\Microsoft.AspNetCore.OData\Query\Validator\SelectExpandQueryValidator.cs: riga 107
   in Microsoft.AspNetCore.OData.Query.Validator.SelectExpandQueryValidator.Validate(SelectExpandQueryOption selectExpandQueryOption, ODataValidationSettings validationSettings) in D:\a\1\s\src\Microsoft.AspNetCore.OData\Query\Validator\SelectExpandQueryValidator.cs: riga 54
   in Microsoft.AspNetCore.OData.Query.SelectExpandQueryOption.Validate(ODataValidationSettings validationSettings) in D:\a\1\s\src\Microsoft.AspNetCore.OData\Query\Query\SelectExpandQueryOption.cs: riga 266
   in Microsoft.AspNetCore.OData.Query.Validator.ODataQueryValidator.Validate(ODataQueryOptions options, ODataValidationSettings validationSettings) in D:\a\1\s\src\Microsoft.AspNetCore.OData\Query\Validator\ODataQueryValidator.cs: riga 106
   in Microsoft.AspNetCore.OData.Query.ODataQueryOptions.Validate(ODataValidationSettings validationSettings) in D:\a\1\s\src\Microsoft.AspNetCore.OData\Query\ODataQueryOptions.cs: riga 652

It appears that ODataQueryContext.TargetStructuredType is null despite the returned type being a valid entity collection from an entity set.
The culprit should be here:

AspNetCoreOData/src/Microsoft.AspNetCore.OData/Routing/ODataPathExtensions.cs

Line 199 in d0b2f76

internal static (IEdmProperty, IEdmStructuredType, string) GetPropertyAndStructuredTypeFromPath(this ODataPath path)

because it appears that OperationImportSegment (which should be an unbound function/action) is not handled and is returning null.

In fact if I "patch" ODataPath by replacing OperationImportSegment with OperationSegment it works.