JS UDF: If a javascript function contains a transaction, even after the transaction commits, the metrics shows "transactionRemainingTime"

cbq> EXECUTE FUNCTION doDelivery(1,7,"2022-01-10 11:07:35.066141");

{

    "requestID": "e66e7cc7-295a-4fab-b04c-cfcc9e7de3c1",

    "signature": null,

    "results": [

    [

        1,

        2418

    ]

    ],

    "status": "success",

    "metrics": {

        "elapsedTime": "51.530981ms",

        "executionTime": "51.420036ms",

        "resultCount": 1,

        "resultSize": 31,

        "serviceLoad": 3,

        "transactionElapsedTime": "22.330848ms",

        "transactionRemainingTime": "14.977660267s"

    }

} 

function doDelivery(w_id,o_carrier_id,ol_delivery_d){

    try{

        var querybegin=BEGIN WORK;

        querybegin.close();

        var result = [];

         var d_id=1;

            var params = [d_id,w_id];

            var query= N1QL('EXECUTE DELIVERY_getNewOrder',params);

            var newOrder = [];

            for (const row of query) {

                 newOrder.push(row);

             }

            query.close();

            if (newOrder.length == 0){

                /*## No orders for this district: skip it. Note: This must be reported if > 1%*/

                var query = COMMIT WORK;

                return;

                }

            var no_o_id = newOrder[0]['NO_O_ID'];

            params = [no_o_id, d_id, w_id];

            var query = N1QL('EXECUTE DELIVERY_getCId',params);

            var rs = [];

....

....

        var query = COMMIT WORK;

        query.close();

        return result;

    }catch (error){     var query = ROLLBACK WORK;              throw error;

    }