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.
disableRange: task.disableRange,
          disableAutoFetch: !task.enableAutoFetch,
          pdfBug: true,
          useSystemFonts: task.useSystemFonts,
          useWorkerFetch: task.useWorkerFetch,
          enableXfa: task.enableXfa,
          styleElement: xfaStyleElement,
        });
        let promise = loadingTask.promise;
        if (task.save) {
          if (!task.annotationStorage) {
            promise = Promise.reject(
              new Error("Missing `annotationStorage` entry.")
            );
          } else {
            promise = loadingTask.promise.then(async doc => {
              for (const [key, value] of Object.entries(
                task.annotationStorage
              )) {
                doc.annotationStorage.setValue(key, value);
              }
              const data = await doc.saveDocument();
              await loadingTask.destroy();
              delete task.annotationStorage;
              return getDocument(data).promise;
            });
          }
        }
        promise.then(
          async doc => {