Attach (recommended) or Link to PDF file here:
https://www.placementsmondiauxsunlife.com/content/dam/sunlife/regional/canada/documents/slgi/4839-I-F.pdf

Configuration:

- Web browser and its version: 91.0a1 (2021-07-03) (64-bit)
- Operating system and its version: Windows 10

Steps to reproduce the problem:
1. enableXfa = true
2. Open form

What is the expected behavior? (add screenshot)

![image](https://user-images.githubusercontent.com/7104454/124389449-1ede2b80-dcb5-11eb-98ba-01e1f3d6c6f5.png)


What went wrong? (add screenshot)

![image](https://user-images.githubusercontent.com/7104454/124389460-2c93b100-dcb5-11eb-9768-98ddd2c8f1e7.png)

"rest",
    ]);
    this.relevant = getRelevant(attributes.relevant);
    this.use = attributes.use || "";
    this.usehref = attributes.usehref || "";
    this.desc = null;
    this.extras = null;
    this.medium = null;
    this.occur = null;
    this.area = new XFAObjectArray();
    this.contentArea = new XFAObjectArray();
    this.draw = new XFAObjectArray();
    this.exclGroup = new XFAObjectArray();
    this.field = new XFAObjectArray();
    this.subform = new XFAObjectArray();
  }
  [$isUsable]() {
    if (!this[$extra]) {
      this[$extra] = {
        numberOfUse: 0,
      };
      return true;
    }
    return (
      !this.occur ||
      this.occur.max === -1 ||
      this[$extra].numberOfUse < this.occur.max
    );
  }
  [$cleanPage]() {