L3 - Default Description
Context:
We should not remove a report but just adjust the tenants if a user adjusts the tenants of a scope and the report won't be in that scope any longer, since it's not necessary to remove the report here.
AT:
- all tenants that are removed from the scope on the update, are also removed from all reports in the collection
- if the report does not contain any tenants anymore, then the report is being removed as well