Demonstates a defect in Microsoft.AspNetCore.OData

Compile and run this application. When a request is sent to "/defects?$apply=groupby((Severity,Impact))&$top=2" an error response is returned due to the defect OData/AspNetCoreOData#979.

Note that if the version of Microsoft.AspNetCore.OData is changed to 8.0.4, there is no error.