The following code is flagged as dead (since it's *replacing* rather than updating the existing Object):
https://github.com/mozilla/pdf.js/blob/4483cba72410027acf46630ebf252ae529704476/src/core/xfa/template.js#L2336-L2339
according to the alert in https://github.com/mozilla/pdf.js/security/code-scanning/103?query=ref%3Arefs%2Fheads%2Fmaster

Looking at the surrounding code, I can see a couple of possibilities here:
 1. This is indeed just dead code, which should be removed.
 2. The code should be moved up, and placed just *above* the previous block instead.
 3. There should be other, more invasive, changes made to this code...

/cc @calixteman Which solution is correct here?
Assuming it's either option 1 or 2, I can submit a patch to fix this.
this.rotate = getInteger({
      data: attributes.rotate,
      defaultValue: 0,
      validate: x => x % 90 === 0,
    });
    this.use = attributes.use || "";
    this.usehref = attributes.usehref || "";
    this.w = attributes.w ? getMeasurement(attributes.w) : "";
    this.x = getMeasurement(attributes.x, "0pt");
    this.y = getMeasurement(attributes.y, "0pt");
    this.assist = null;
    this.border = null;
    this.caption = null;
    this.desc = null;
    this.extras = null;
    this.font = null;
    this.keep = null;
    this.margin = null;
    this.para = null;
    this.traversal = null;
    this.ui = null;
    this.value = null;
    this.setProperty = new XFAObjectArray();
  }
  [$setValue](value) {
    _setValue(this, value);
  }
  [$toHTML](availableSpace) {
    if (this.presence === "hidden" || this.presence === "inactive") {
      return HTMLResult.EMPTY;