Attach (recommended) or Link to PDF file here:
issue13500 (in test corpus)

This regressed when landing #13566. 

What is the expected behavior? (add screenshot)
<img width="664" alt="image" src="https://user-images.githubusercontent.com/942640/122467522-7bc8aa80-cf6f-11eb-9d4d-311eb7c64fb2.png">


What went wrong? (add screenshot)
![image](https://user-images.githubusercontent.com/942640/122467565-85eaa900-cf6f-11eb-9c10-8a8686ed440c.png)


class: [],
    };
    setAccess(this, attributes.class);
    if (!this[$extra]) {
      this[$extra] = Object.create(null);
    }
    Object.assign(this[$extra], {
      children,
      attributes,
      attempt: 0,
      availableSpace,
      width: 0,
      height: 0,
      prevHeight: 0,
      currentWidth: 0,
    });
    if (!checkDimensions(this, availableSpace)) {
      return HTMLResult.FAILURE;
    }
    const filter = new Set([
      "area",
      "draw",
      "exclGroup",
      "field",
      "subform",
      "subformSet",
    ]);
    if (this.layout.includes("row")) {
      const columnWidths = this[$getSubformParent]().columnWidths;
      if (Array.isArray(columnWidths) && columnWidths.length > 0) {