code: void setValue(SubProgressionModel subTask, double newValue, String comment) {
  		setProperties(newValue, this.min, this.max, this.isAdjusting,
  				comment == null ? this.comment : comment, true, true, false,
  				subTask);
  	}
docs: Set the value with a float-point precision.
  This method is invoked from a subtask.
  
  @param subTask the subtask.
  @param newValue the new value.
  @param comment the new comment.