radvd: SLAAC enabled with Router Advertisements disabled

[SaarLAN-Pissbeutel]

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Describe the bug
With the setting "Router Advertisements" set to "Disabled" on the router advertisement page and manual configuration enabled on the interface configuration page, the radvd.conf is being generated as if "Unmanaged" was set and devices on the respective network receive IPv6 addressing.

The /var/etc/radvd.conf includes a full slaac setup for this interface and the comment which would be there with the automatic configuration:
"# Generated RADVD config for dhcp6 assignment from wan on lan"

To Reproduce
Steps to reproduce the behavior:

1. Configure IPv6 Track Interface and enable manual configuration of DHCPv6 and RA
2. Leave DHCPv6 and RA set to default options (i.e. DHCPv6: disabled, RA: disabled)
3. Connect a device to the network and observe that it receives IPv6 addressing with the respective prefix ID from this network
4. Observe the /var/etc/radvd.conf file having a configuration for this network

Additional information:
In my setup, I have another interface configured with SLAAC enabled (unmanaged mode).

Expected behavior
With the RA set to disabled for interface X, no configuration for interface X should be present in /var/etc/radvd.conf

Screenshots

Environment
OPNsense 25.1 (amd64).
OPNsense 24.7 (amd64).