$apply=groupby cannot return correct propertyName with JsonProperty

Assemblies affected

<PackageReference Include="Microsoft.AspNetCore.OData" Version="8.2.0" />
<PackageReference Include="Microsoft.AspNetCore.Mvc.NewtonsoftJson" Version="6.0.5" />
<PackageReference Include="Microsoft.AspNetCore.OData.NewtonsoftJson" Version="8.2.0" />

Describe the bug
I'm trying to use the $apply=grouby((***)) to deal with distinct value. But I found the query and response don't follow the JsonProperty.

Reproduce steps
As an example, my server just return such JSON Object [{"properties":{"id":1,"name":"a"}},{"properties":{"id":2,"name":"b"}}] in API /employees. And while I apply with OData query, the results are below:

1. GET /employees?$expand=properties($select=name)

The result is expected. It would return [{"properties":{"name":"a"}},{"properties":{"name":"b"}}]

2. GET /employees?$apply=groupby((properties/name))

The result is unexpected. It would return [{"Properties":{"Name":"a"}},{"Properties":{"Name":"b"}}]
It doesn't follow the JsonProperty name in lower case "properties" and "name".

Data Model

public class EmployeeResult
{
    [JsonProperty("properties")]
    public EmployeeModel Properties { get; set; }
}

public class EmployeeModel
{
    [JsonProperty("id")]
    public int Id { get; set; }
    [JsonProperty("name")]
    public string Name { get; set; }
}

EDM (CSDL) Model
I'm using ODataQueryOptions<>.ApplyTo(), so can't get any $metadata successfully.
The controller code is very simple:

    [HttpGet]
    public ActionResult Get(ODataQueryOptions<EmployeeResult> options)
    {
        IEnumerable<EmployeeModel> models = EmployeeService.GetEmployees();
        var res = options.ApplyTo(EmployeeService.GetEmployees()
            .Select(employee => new EmployeeResult { Properties = employee})
            .AsQueryable());

        return new JsonResult(res);
    }

Request/Response
Already describe in Reproduce steps

Expected behavior
The result of GET /employees?$apply=groupby((properties/name)) should be [{"properties":{"name":"a"}},{"properties":{"name":"b"}}]

Screenshots

use with echo in command to add a newline after response body

Additional context
N/A