Staging object update creates a new object id

[das-Abroxas]

Describe the bug

Every update on an object in the staging phase returns a new object id. Objects in the staging phase should be updatable in-place as they are not released for productive usage.

To Reproduce

Steps to reproduce the behavior:

1. Initialize a random object
2. Send an UpdateObjectRequest with the staging object id
3. UpdateObjectResponse contains object id not equal to the one from the request

Expected behavior

Updates on an staging object should not create a new object id but retain the assigned id of the initial initialize/update request.