os-ddclient: Cloudflare DNS updates with multiple hostnames write all to same entry

[Flat]

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Describe the bug
When using the native backend to update dynamic dns via Cloudflare, if multiple hostnames are specified in an entry it will add an entry with all hostnames comma separated instead of updating each listed hostname.

To Reproduce
Steps to reproduce the behavior:

1. Go to Services->Dynamic DNS
2. Add a new entry with Service Cloudflare, enter multiple domains/hostnames along with zone and credentials
3. View Cloudflare dashboard and observe all hostnames are entered as one entry.

Expected behavior
All hostnames entered should be updated as their individual DNS records.

Screenshots
N/A

Relevant log files
N/A

Additional context
ddclient backend appears to work as expected.

Environment

OPNsense 25.1.7_4 (amd64).

[covellitenz]

Can confirm.

OPNsense 25.1.9_2-amd64
FreeBSD 14.2-RELEASE-p3
OpenSSL 3.0.16
os-ddclient 1.27_3

The error message looks like:
Account xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx [cloudflare - WAN IP -> Cloudflare DNS] error receiving RecordID [[{"code": 9334, "message": "Filtering for multiple names with URL parameter \"name=www.xxxx.xxx,vpn.xxxx.xxx\" is no longer supported. See <https://developers.cloudflare.com/fundamentals/api/reference/deprecations/#2025-02-21> for more information."}]]

[LeLunZ]

To update both my wildcard and top-level domain, I entered these values into the hostnames field:

*.<domain-name>.me, <domain-name>.me

For me instead of adding a new entry I now get these errors:

Account <accountID> [cloudflare - ] error locating hostname *.<domain-name>.me,<domain-name>.me [A]

I guess this is related to this draft PR #4550

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