Attach (recommended) or Link to PDF file here: [form-cms1500.pdf](https://github.com/mozilla/pdf.js/files/5670936/form-cms1500.pdf) (Original opened in Acrobat and checked one radio-button)
Original Source: https://www.cigna.com/static/www-cigna-com/docs/health-care-providers/form-cms1500.pdf

Configuration:
- Web browser and its version: FF 83.0
- Operating system and its version: Win 10 Pro
- PDF.js version: 2.7.355

Steps to reproduce the problem:
1. Open the PDF here: https://mozilla.github.io/pdf.js/web/viewer.html
2. See that all radio-buttons are checked, which is wrong.

What is the expected behavior? (add screenshot)
![grafik](https://user-images.githubusercontent.com/12390057/101734698-f72d3900-3ac0-11eb-817e-94ce276797e8.png)

What went wrong? (add screenshot)
![grafik](https://user-images.githubusercontent.com/12390057/101734712-fc8a8380-3ac0-11eb-833d-412243a7950c.png)

This radio-button field can be found in object `45 0 obj`.
this.container.className = "choiceWidgetAnnotation";
    const storage = this.annotationStorage;
    const id = this.data.id;
    
    
    
    
    
    
    
    storage.getOrCreateValue(id, {
      value:
        this.data.fieldValue.length > 0 ? this.data.fieldValue[0] : undefined,
    });
    const selectElement = document.createElement("select");
    selectElement.disabled = this.data.readOnly;
    selectElement.name = this.data.fieldName;
    selectElement.setAttribute("id", id);
    if (!this.data.combo) {
      
      selectElement.size = this.data.options.length;
      if (this.data.multiSelect) {
        selectElement.multiple = true;
      }
    }
    
    for (const option of this.data.options) {
      const optionElement = document.createElement("option");