SkipToken returning invalid next link when combined with select

Hi team,
we are using AspNetCore.Odata 8.0.8 for a simple get api with paging.
the Default paging uses Skip - which is causing us regressions with EFC (inefficient query)

in order to improve the performance, we are trying to use SkipToken for generating the next page link instead.

we added the skip token this way:

AddOData(opt =>
                {
                    var edmModel = GetEdmModel();
                    opt.AddRouteComponents("api", edmModel, ConfigureODataServices).SkipToken();
                    opt.RouteOptions.EnableNonParenthesisForEmptyParameterFunction = true;
                });

this works perfectly when sending a simple get request, however, when the request has a select filter
for example: http://localhost:1059/api/Machines?$select=id

the next link is: "@odata.nextLink": "https://localhost:1059/api/Machines?$select=id&$skiptoken=id-null"

can you help in investigating this bug?

Best,
Nader.