Attach (recommended) or Link to PDF file here:
PDF from #4106, https://mail.gnome.org/archives/evince-list/2013-November/pdfNC0hkVW67a.pdf.

Steps to reproduce the problem:
1. Open the PDF

What is the expected behavior?
![immagine](https://user-images.githubusercontent.com/1616846/121865567-67ca4200-ccfe-11eb-8673-1d6e863fc8d5.png)

What went wrong?
The PDF doesn't load, `TypeError: can't access property Symbol(), match is null` error is logged in the console.
"margin",
      "hAlign"
    );
    const classNames = ["xfaExclgroup"];
    const cl = layoutClass(this);
    if (cl) {
      classNames.push(cl);
    }
    attributes.style = style;
    attributes.class = classNames;
    if (this.name) {
      attributes.xfaName = this.name;
    }
    let failure;
    if (this.layout === "lr-tb" || this.layout === "rl-tb") {
      for (
        ;
        this[$extra].attempt < MAX_ATTEMPTS_FOR_LRTB_LAYOUT;
        this[$extra].attempt++
      ) {
        if (
          this[$childrenToHTML]({
            filter,
            include: true,
          })
        ) {
          break;
        }
      }
      failure = this[$extra].attempt === 2;