bug of update function if 'replace' parameter is true when use FasterEMA

[nicewookyes]

The function setResult In indicator.ts will export wrong value while the 'replace' parameter is true, beacuse 'this.previousResult' always replaced by 'this.result'. it should not be replaced if 'replace' parameter is true

protected setResult(value: number, replace: boolean = false): number {
    if (replace && this.previousHighest !== undefined) {
      this.highest = value > this.previousHighest ? value : this.previousHighest;
    } else if (this.highest === undefined || value > this.highest) {
      this.previousHighest = this.highest;
      this.highest = value;
    }

    if (replace && this.previousLowest) {
      this.lowest = value < this.previousLowest ? value : this.previousLowest;
    } else if (this.lowest === undefined || value < this.lowest) {
      this.previousLowest = this.lowest;
      this.lowest = value;
    }

    this.previousResult = this.result;
    return (this.result = value);
  }

Fixed it by

 if(!replace){
      this.previousResult = this.result;
    }