Problem Statement/Rationale

The Mongo standard client will work seamlessly, however, the mongosh client will simply not transmit the scope to the server.

Steps to Reproduce

db.orders.mapReduce(
    monthlyMapFunction,
    reduceFunction,
    {
      query: {
        createdAt: {
          $gt: startDate,
          $lte: endDate
        }
      },
      scope: {
        skus
      },
      out: { reduce: 'monthlyOrders' }
    }
  );

Expected Results

the `skus` variable should be available in both the map and the reduce functions (and, when necessary, in the finalize function).

Actual Results

The `skus` variable is 'null' or undefined.

Additional Notes

It works perfectly fine in the good old mongo client