CRM entity status weirdness - the old way

legacy-setstaterequest.cs

 // issue invoice
var setStateRequest = new SetStateRequest
{
     EntityMoniker = new EntityReference(Invoice.EntityLogicalName, invoice.Id),
     State = new OptionSetValue((int)InvoiceState.Active),
     Status = new OptionSetValue((int)invoice_statuscode.ReadyToIssue)
};
Service.Execute(setStateRequest);

legacy-setstaterequest.js

 setStateToIssued: function (invoiceId) {
  // workaround curly brace issue in Soap lib https://code.msdn.microsoft.com/SdkSoapjs-9b51b99a/view/Discussions
  invoiceId = invoiceId.replace(/[{}]/g, "");
  var moniker = new Sdk.EntityReference("invoice", invoiceId);
  var state = 0; //active
  var status = 293750003; // Ready To Issue
  var req = new Sdk.SetStateRequest(moniker, state, status);
  Sdk.Q.execute(req)
    .then(function () {
      Xrm.Page.data.entity.save("saveandclose");
    }, function (error) {
      common.log(error);
  });
}