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)

? getMeasurement(attributes.spaceAbove, "0pt")
      : "";
    this.spaceBelow = attributes.spaceBelow
      ? getMeasurement(attributes.spaceBelow, "0pt")
      : "";
    this.tabDefault = attributes.tabDefault
      ? getMeasurement(this.tabDefault)
      : "";
    this.tabStops = (attributes.tabStops || "")
      .trim()
      .split(/\s+/)
      .map((x, i) => (i % 2 === 1 ? getMeasurement(x) : x));
    this.textIndent = attributes.textIndent
      ? getMeasurement(attributes.textIndent, "0pt")
      : "";
    this.use = attributes.use || "";
    this.usehref = attributes.usehref || "";
    this.vAlign = getStringOption(attributes.vAlign, [
      "top",
      "bottom",
      "middle",
    ]);
    this.widows = getInteger({
      data: attributes.widows,
      defaultValue: 0,
      validate: x => x >= 0,
    });
    this.hyphenation = null;
  }
  [$toStyle]() {