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.
if (!this[$extra]) {
      this[$extra] = {
        numberOfUse: 1,
        pageIndex: -1,
        pageSetIndex: -1,
      };
    }
    if (this.relation === "orderedOccurrence") {
      if (this[$extra].pageIndex + 1 < this.pageArea.children.length) {
        this[$extra].pageIndex += 1;
        const pageArea = this.pageArea.children[this[$extra].pageIndex];
        return pageArea[$getNextPage]();
      }
      if (this[$extra].pageSetIndex + 1 < this.pageSet.children.length) {
        this[$extra].pageSetIndex += 1;
        return this.pageSet.children[this[$extra].pageSetIndex][$getNextPage]();
      }
      if (this[$isUsable]()) {
        this[$extra].numberOfUse += 1;
        this[$extra].pageIndex = -1;
        this[$extra].pageSetIndex = -1;
        return this[$getNextPage]();
      }
      const parent = this[$getParent]();
      if (parent instanceof PageSet) {