Attach (recommended) or Link to PDF file here:
https://web.archive.org/web/20210607145115/https://www.hsbc.fr/content/dam/hsbc/fr/docs/pib/Contestation-Transaction-Carte-Bancaire.pdf
(in the test corpus)

What is the expected behavior? (add screenshot)
<img width="175" alt="image" src="https://user-images.githubusercontent.com/942640/121593583-f8e4a480-c9f0-11eb-8901-2b3b63bb34c0.png">

What went wrong? (add screenshot)
<img width="124" alt="image" src="https://user-images.githubusercontent.com/942640/121593765-1a459080-c9f1-11eb-8695-461ef4e65c3d.png">

if (this[$extra] && this[$extra].afterBreakAfter) {
      const ret = this[$extra].afterBreakAfter;
      delete this[$extra];
      return ret;
    }
    if (this.presence === "hidden" || this.presence === "inactive") {
      return HTMLResult.EMPTY;
    }
    if (
      this.breakBefore.children.length > 1 ||
      this.breakAfter.children.length > 1
    ) {
      
      
      warn(
        "XFA - Several breakBefore or breakAfter in subforms: please file a bug."
      );
    }
    
    fixDimensions(this);
    const children = [];
    const attributes = {
      id: this[$uid],
    };
    if (!this[$extra]) {
      this[$extra] = Object.create(null);
    }
    Object.assign(this[$extra], {
      children,
      attributes,