[cloud_firestore] Snapshot lost attributes changes after offline updates

[lukber]

Android Studio version: 2020.3.1. Patch 3
Firebase Component: Firestore
Component version: firebase-bom: 29.3.0

Describe the problem

When is Android client offline and I update property X and next update property Y then property X lost changes.

Steps to reproduce:

1. My phone is online
2. I create new movie document. DocumentSnapshot.getData() contain all document data (Snapshot: {name=Star wars (episode 0), stars=0, likes=0}, ID: 1mlmdMqsvrB9AucwuVvq)
3. Switch phone to flight mode
4. I update likes to 1. DocumentSnapshot.getData() contain all document data (Snapshot: {name=Star wars (episode 0), stars=0, likes=1}, ID: 1mlmdMqsvrB9AucwuVvq)
5. I update stars to 1. DocumentSnapshot.getData() contain all document data (Snapshot: {name=Star wars (episode 0), stars=1, likes=1}, ID: 1mlmdMqsvrB9AucwuVvq)
6. I update stars to 2. DocumentSnapshot.getData() lost changes in likes attribute (Snapshot: {name=Star wars (episode 0), stars=2, likes=0}, ID: 1mlmdMqsvrB9AucwuVvq)

Relevant Code:

Here is a test application. You must put google-services.json yourself.

1. Start app with internet connection
2. Click to ADD NEW MOVIE button
3. Switch phone to flight mode
4. Click to LIKES button
5. Click to STARS button
6. Click to STARS button

[lukber]

I add console log: logcat.txt

[lukber]

Hi, the fix has already been moved to the master branch, but a new version has not yet been released. When do you plan to release a new version?