What/Where is the issue ?

When a user is removed from an organisation in a SaaS cluster, their full name is still displayed in any collection user tables that they were a member of. We should instead be displaying the userID only.

Environment: C8SaaS

Optimize version : any after introduction of cloud user cache, probably 3.9.0++ up to most recent version
ES version : irrelavant
OS + Browser version : irrelevant

Steps to reproduce:

• Preconditions:
  • have a cluster in an organisation with more than one member
• Steps:
  • In Oprtimize, create a new collection
  • Add another use to this collection
  • Observe full name in user list
  • Remove this user from your organisation

Observed behavior:

Observe that full name of removed user is still displayed in collection user tab, even after waiting a while

Expected behavior:

After a while (cache expiry time to be clarified - maybe 5mins?), when checking the users tab in collections the removed user should not be shown with full name but instead only with their userID.

Additional Information:

We probably just need to add sth like .expireAfterWrite to the cloud user cache like we have for the CCSM tenant authorization cache.