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.
if (this[$content] instanceof XFAObject) {
      return;
    }
    super[$onText](str);
  }
  [$finalize]() {
    if (typeof this[$content] === "string") {
      this[$content] = this[$content].replace(/\r\n/g, "\n");
    }
  }
  [$getExtra]() {
    if (typeof this[$content] === "string") {
      return this[$content]
        .split(/[\u2029\u2028\n]/)
        .reduce((acc, line) => {
          if (line) {
            acc.push(line);
          }
          return acc;
        }, [])
        .join("\n");
    }
    return this[$content][$text]();
  }
  [$toHTML](availableSpace) {