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.
constructor(attributes) {
    super(TEMPLATE_NS_ID, "pageSet",  true);
    this.duplexImposition = getStringOption(attributes.duplexImposition, [
      "longEdge",
      "shortEdge",
    ]);
    this.id = attributes.id || "";
    this.name = attributes.name || "";
    this.relation = getStringOption(attributes.relation, [
      "orderedOccurrence",
      "duplexPaginated",
      "simplexPaginated",
    ]);
    this.relevant = getRelevant(attributes.relevant);
    this.use = attributes.use || "";
    this.usehref = attributes.usehref || "";
    this.extras = null;
    this.occur = null;
    this.pageArea = new XFAObjectArray();
    this.pageSet = new XFAObjectArray();
  }
  [$getNextPage]() {