FireStore document is read multiple times after a single update in the Firebase emulator suite

[ablbol]

I am using FireStore to save users data. Each user in my Flutter app has a stream that listens to the user's document. I am running FireStore emulator and noticed that a lot of the time after the user document is updated, document is read twice or more. I have attached an image from the FireStore emulator that shows that. Is there a reason why I am getting multiple reads after a single update. I am not doing any read to the user document outside the stream.

I am using Flutter mobile app for watching the user document. The print statement in this code prints only one read. But if I am reading the user document only in the stream, then how do I end up with 2 or more reads in the emulator?

Stream<MyProfile?> watchMyProfile() {
    return _firestore
        .doc(PathService.user(uid))
        .withConverter<MyProfile>(
          fromFirestore: (snapshot, _) {
            return MyProfile.fromJson(snapshot.data()!);
          },
          toFirestore: (myProfile, _) => myProfile.toJson(),
        )
        .snapshots()
        .map((doc) => doc.data())
        .map(
      (myProfile) {
        // THIS ONLY PRINTS ONCE.
        debugPrint('watchMyProfile - read my profile');
        return myProfile;
      },
    );
  }