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)

constructor(attributes) {
    super(TEMPLATE_NS_ID, "reason");
    this.id = attributes.id || "";
    this.name = attributes.name || "";
    this.use = attributes.use || "";
    this.usehref = attributes.usehref || "";
  }
}
class Reasons extends XFAObject {
  constructor(attributes) {
    super(TEMPLATE_NS_ID, "reasons",  true);
    this.id = attributes.id || "";
    this.type = getStringOption(attributes.type, ["optional", "required"]);
    this.use = attributes.use || "";
    this.usehref = attributes.usehref || "";
    this.reason = new XFAObjectArray();
  }
}
class Rectangle extends XFAObject {