Attach (recommended) or Link to PDF file here:
http://education.ohio.gov/getattachment/Topics/Special-Education/Preschool-Special-Education/ETR-Preschool-Planning-Form.pdf.aspx

- Web browser and its version: Firefox 89.0.1
- Operating system and its version: Windows 10 10.0.19043.1052
- PDF.js version: commit 5d251a3a3e7bfaa8fbfa07f0b7f9901eb3f999d9
- Is a browser extension: No

Steps to reproduce the problem:
1. Enable XFA support
2. Open form

What is the expected behavior? (add screenshot)
Shapes stay inside table cells
![image](https://user-images.githubusercontent.com/7104454/122572782-1252a580-d01c-11eb-9d0f-5fed46d6f2fe.png)

What went wrong? (add screenshot)
Shapes fall outside cells (among other issues)
![image](https://user-images.githubusercontent.com/7104454/122572885-2d251a00-d01c-11eb-8863-fa3b9969f0ea.png)

if (this.break) {
      
      
      if (this.break.after !== "auto" || this.break.afterTarget !== "") {
        const node = new BreakAfter({
          targetType: this.break.after,
          target: this.break.afterTarget,
          startNew: this.break.startNew.toString(),
        });
        node[$globalData] = this[$globalData];
        this[$appendChild](node);
        this.breakAfter.push(node);
      }
      if (this.break.before !== "auto" || this.break.beforeTarget !== "") {
        const node = new BreakBefore({
          targetType: this.break.before,
          target: this.break.beforeTarget,
          startNew: this.break.startNew.toString(),
        });
        node[$globalData] = this[$globalData];
        this[$appendChild](node);
        this.breakBefore.push(node);
      }
      if (this.break.overflowTarget !== "") {
        const node = new Overflow({
          target: this.break.overflowTarget,
          leader: this.break.overflowLeader,
          trailer: this.break.overflowTrailer,
        });
        node[$globalData] = this[$globalData];