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).
event.target.checked = event.detail.value !== "Off";
            storage.setValue(id, { value: event.target.checked });
          },
        };
        this._dispatchEventFromSandbox(actions, jsEvent);
      });
      this._setEventListeners(
        element,
        [
          ["change", "Validate"],
          ["change", "Action"],
          ["focus", "Focus"],
          ["blur", "Blur"],
          ["mousedown", "Mouse Down"],
          ["mouseenter", "Mouse Enter"],
          ["mouseleave", "Mouse Exit"],
          ["mouseup", "Mouse Up"],
        ],
        event => event.target.checked
      );
    }
    this.container.appendChild(element);
    return this.container;
  }
}
class RadioButtonWidgetAnnotationElement extends WidgetAnnotationElement {