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).
const IGNORE_TYPES = [
      "Line",
      "Square",
      "Circle",
      "PolyLine",
      "Polygon",
      "Ink",
    ];
    this.container.className = "popupAnnotation";
    if (IGNORE_TYPES.includes(this.data.parentType)) {
      return this.container;
    }
    const selector = `[data-annotation-id="${this.data.parentId}"]`;
    const parentElements = this.layer.querySelectorAll(selector);
    if (parentElements.length === 0) {
      return this.container;
    }
    const popup = new PopupElement({
      container: this.container,
      trigger: Array.from(parentElements),
      color: this.data.color,
      title: this.data.title,
      modificationDate: this.data.modificationDate,
      contents: this.data.contents,
    });