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, "filter",  true);
    this.addRevocationInfo = getStringOption(attributes.addRevocationInfo, [
      "",
      "required",
      "optional",
      "none",
    ]);
    this.id = attributes.id || "";
    this.name = attributes.name || "";
    this.use = attributes.use || "";
    this.usehref = attributes.usehref || "";
    this.version = getInteger({
      data: this.version,
      defaultValue: 5,
      validate: x => x >= 1 && x <= 5,
    });
    this.appearanceFilter = null;
    this.certificates = null;
    this.digestMethods = null;
    this.encodings = null;
    this.encryptionMethods = null;
    this.handler = null;
    this.lockDocument = null;
    this.mdp = null;
    this.reasons = null;
    this.timeStamp = null;
  }
}
class Float extends ContentObject {