message: fix sync compare
diff: @@ -77,9 +77,8 @@ const syncDocOnUpdate = (
  fieldsToSync: string[],
  forcedUpdate: boolean
  ) => (snapshot: functions.Change<FirebaseFirestore.DocumentSnapshot>) => {
  - // TODO: compare before and after for fields to sync
  const afterData = snapshot.after.data();
  - const beforeData = snapshot.after.data();
  + const beforeData = snapshot.before.data();
  const hasChanged = !_.isEqual(afterData, beforeData);
  if (hasChanged) {
  if (forcedUpdate === true) {
  