Customer: Dish
Current documented behaviour.
At max, there can only be two override entries corresponding to a combination of query params: accountIdentifier, orgIdentifier (if present), and projectIdentifier(if present): one with tags and one without tags. If the same combination of parameters is used with a different value of tags or delegateTag, then the existing entry will get updated.
Customer is requesting for the ability to have multiple override entries (not just two) as it becomes easier to manager multiple delegate groups with different versions.