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)


constructor(attributes) {
    super(TEMPLATE_NS_ID, "proto",  true);
    this.appearanceFilter = new XFAObjectArray();
    this.arc = new XFAObjectArray();
    this.area = new XFAObjectArray();
    this.assist = new XFAObjectArray();
    this.barcode = new XFAObjectArray();
    this.bindItems = new XFAObjectArray();
    this.bookend = new XFAObjectArray();
    this.boolean = new XFAObjectArray();
    this.border = new XFAObjectArray();
    this.break = new XFAObjectArray();
    this.breakAfter = new XFAObjectArray();
    this.breakBefore = new XFAObjectArray();
    this.button = new XFAObjectArray();
    this.calculate = new XFAObjectArray();
    this.caption = new XFAObjectArray();
    this.certificate = new XFAObjectArray();
    this.certificates = new XFAObjectArray();
    this.checkButton = new XFAObjectArray();
    this.choiceList = new XFAObjectArray();
    this.color = new XFAObjectArray();
    this.comb = new XFAObjectArray();
    this.connect = new XFAObjectArray();
    this.contentArea = new XFAObjectArray();