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.
constructor(attributes) {
    super(TEMPLATE_NS_ID, "break",  true);
    this.after = getStringOption(attributes.after, [
      "auto",
      "contentArea",
      "pageArea",
      "pageEven",
      "pageOdd",
    ]);
    this.afterTarget = attributes.afterTarget || "";
    this.before = getStringOption(attributes.before, [
      "auto",
      "contentArea",
      "pageArea",
      "pageEven",
      "pageOdd",
    ]);
    this.beforeTarget = attributes.beforeTarget || "";
    this.bookendLeader = attributes.bookendLeader || "";
    this.bookendTrailer = attributes.bookendTrailer || "";
    this.id = attributes.id || "";
    this.overflowLeader = attributes.overflowLeader || "";
    this.overflowTarget = attributes.overflowTarget || "";
    this.overflowTrailer = attributes.overflowTrailer || "";
    this.startNew = getInteger({
      data: attributes.startNew,
      defaultValue: 0,