Unable to Update existing CNAME

```
time="2026-04-08T13:33:24Z" level=info msg="Changing record" action=CREATE record=alloy.example.com target=traefik.example.com ttl=300 type=RecordCNAME zone=example.com
2026/04/08 13:33:25 CreateObject request error: 'WAPI request error: 400('400 Bad Request')
Contents:
{ "Error": "AdmConDataError: None (IBDataConflictError: IB.Data.Conflict:The record 'alloy.example.com' already exists.)",
"code": "Client.Ibap.Data.Conflict",
"text": "The record 'alloy.example.com' already exists."
}
```
I updated a record to update a CNAME record from one url backend to another, and it returns a 400 error on the create request, but should this not be an UpdateObject vs a create object? I run my externaldns in upsert-only, I would imagine that this should be an update rather than a delete and create of a new record or is there something I am unaware of regarding this?f