siproxd issue while adding ip addresses

• [√] I have read the contributing guide lines at https://github.com/opnsense/plugins/blob/master/CONTRIBUTING.md
• [√] I have searched the existing issues, open and closed, and I'm convinced that mine is new.
• [√] The title contains the plugin to which this issue belongs

Describe the bug
When adding multiple ip addresses in the fields "Hosts to allow registration", "Hosts to allow SIP" and / or "Hosts to allow SIP" it will only accept 1 ip address multiple addresses are not accepted in the gui, so:
192.168.9.125/32 is accepted and 192.168.9.125/32,192.168.9.130/32 is not accepted.
The help says: Here you specify the devices allowed to do SIP connections to siproxd (internal and external). Format is CSV without spaces and CIDR, like 192.168.0.0/24,10.0.0.0/8.
So according to the help and the siproxd documentation it should be possible.

To Reproduce
Steps to reproduce the behavior:

1. Go to 'Services\Siproxd'
2. Click on 'General'
3. Scroll down to 'Hosts to allow registration' or 'Hosts to allow SIP' or 'Hosts to allow SIP'
4. See error

Expected behavior
Expect to input multiple IP-addresses/Networks according CSV format without spaces and CIDR, like 192.168.0.0/24,10.0.0.0/8..

Screenshots

Relevant log files
N.A.

Additional context
Add any other context about the problem here.

Environment
Software version used and hardware type if relevant.
OPNsense 26.1.6-amd64
FreeBSD 14.3-RELEASE-p10
OpenSSL 3.0.20
Intel(R) Core(TM) i5-6500 CPU @ 3.20GHz (4 cores, 4 threads)
Network Intel®
os-siproxd 1.3_3

Start in Services\Siproxd on the General page, focusing on validation for the Hosts to allow registration and Hosts to allow SIP fields. Reproduce the error with comma-separated CIDR addresses such as 192.168.9.125/32,192.168.9.130/32; done means multiple addresses are accepted and saved as described by the help text.