Attach (recommended) or Link to PDF file here:
[Form_MGT-7.pdf](https://github.com/mozilla/pdf.js/files/6768253/Form_MGT-7.pdf)

When we try to open the above pdf, we get in the console:
```
Warning: XFA - an error occured during parsing and binding: TypeError: x.include is not a function
```
which is caused by a typo:
https://github.com/mozilla/pdf.js/blob/b9e84ba70ec5a4a30333b9092f316c9ec7b7f079/src/core/xfa/config.js#L174
 
So fixing the typo allows to open the pdf but there is only 1 page when we have 9 in using masterpdfeditor.
"XFA - Several breakBefore or breakAfter in subforms: please file a bug."
      );
    }
    if (this.breakBefore.children.length >= 1) {
      const breakBefore = this.breakBefore.children[0];
      if (handleBreak(breakBefore)) {
        return HTMLResult.breakNode(breakBefore);
      }
    }
    if (this[$extra] && this[$extra].afterBreakAfter) {
      return HTMLResult.EMPTY;
    }
    
    fixDimensions(this);
    const children = [];
    const attributes = {
      id: this[$uid],
      class: [],
    };
    setAccess(this, attributes.class);
    if (!this[$extra]) {
      this[$extra] = Object.create(null);
    }
    Object.assign(this[$extra], {
      children,
      attributes,
      attempt: 0,
      availableSpace,
      width: 0,
      height: 0,