offset does not work

[BonBonSlick]

Offset supposed to be added to the total steps counted in this session. But it does not

eg

pperUpdates(
                   555,
                   this.stepsSuccess,
                   this.stepsError,
                   this.pedometerOptions
               );

is always starts from 0

Stepper.prototype.startStepperUpdates = function (offset, onSuccess, onError, options) {
    offset = parseInt(offset) || 0;
    options = options || {};
    exec(onSuccess, onError, "Stepper", "startStepperUpdates", [offset, options]);
};