Change notifications not fired when removing and adding an object with the same PK within a transaction.

[sync-by-unito]

This issue was originally reported on realm-java: link.

Depending on the realm version and if a model has or not PK you might not get change listeners events. The test case is of the following:

Three models:

• A: no primary key.
• B: integer PK
• C: string PK

For each model:

• Add a dummy object
• Query for all objects and attach a listener to the results
• In a transaction do:
  • Delete all objects
  • Insert a modified copy of the dummy with the same PK

Observed behavior:

• Core v5.23.8: will trigger change events for the no-PK, int-PK, and string-pk models.
• Core v6.0.25: will trigger for no-PK and int-PK but not for the string-pk.
• Core v10.0.0: will just trigger for no-PK but not for the int-pk or string-pk.

[sync-by-unito]

➤ Jonathan Reams commented:

Bumping the priority on this to P2 since it's a dupe of RCORE-430, which was a P2.