The annotation reference tests now show the date/time placeholder, but since localization is not active we don't see the actual date/time string. It would be nice to be able to have this in the reference images.
let failure = "";
    this._cleanup().then(() => {
      if (this.currentTask === this.manifest.length) {
        this._done();
        return;
      }
      const task = this.manifest[this.currentTask];
      task.round = 0;
      task.pageNum = task.firstPage || 1;
      task.stats = { times: [] };
      task.enableXfa = task.enableXfa === true;
      const prevFile = md5FileMap.get(task.md5);
      if (prevFile) {
        if (task.file !== prevFile) {
          this._nextPage(
            task,
            `The "${task.file}" file is identical to the previously used "${prevFile}" file.`
          );
          return;
        }
      } else {
        md5FileMap.set(task.md5, task.file);
      }