I created a pdf for https://github.com/mozilla/pdf.js/pull/14023:
[same_fields(1).pdf](https://github.com/mozilla/pdf.js/files/7168340/same_fields.1.pdf)
The 3 checkboxes have the same name (`Check Box2`) and have the same values (`Off` and `Yes`).
In pdf.js, these checkboxes behave like radio buttons in the same group (which is wrong) because of:
https://github.com/mozilla/pdf.js/commit/1fcffe80349a98378262c8a16f7b50ff34c3fe82
Since they've the same values they must be synced: if one is checked (resp. unchecked) then all others are checked (resp. unchecked).
/**
   * Render a new annotation layer with all annotation elements.
   *
   * @public
   * @param {AnnotationLayerParameters} parameters
   * @memberof AnnotationLayer
   */
  static render(parameters) {
    const sortedAnnotations = [],
      popupAnnotations = [];
    
    
    
    for (const data of parameters.annotations) {
      if (!data) {
        continue;
      }
      if (data.annotationType === AnnotationType.POPUP) {
        popupAnnotations.push(data);
        continue;
      }
      sortedAnnotations.push(data);
    }
    if (popupAnnotations.length) {
      sortedAnnotations.push(...popupAnnotations);
    }
    for (const data of sortedAnnotations) {
      const element = AnnotationElementFactory.create({