Attach (recommended) or Link to PDF file here:
[docOficialPDF.php.pdf](https://github.com/mozilla/pdf.js/files/7159923/docOficialPDF.php.pdf)

Configuration:
- Web browser and its version: Firefox nightly
- Operating system and its version: linux debian
- PDF.js version: built-in viewer
- Is a browser extension: no

Steps to reproduce the problem:
1. Open the pdf page 2
2. Checkbox "Alta" in section 2 must be checked

It works fine with evince.
constructor(parameters) {
    super(parameters, { isRenderable: parameters.renderForms });
  }
  render() {
    const storage = this.annotationStorage;
    const data = this.data;
    const id = data.id;
    let value = storage.getValue(id, {
      value:
        data.fieldValue &&
        ((data.exportValue && data.exportValue === data.fieldValue) ||
          (!data.exportValue && data.fieldValue !== "Off")),
    }).value;
    if (typeof value === "string") {