NetworkManager TUI quits regardless of a detected unsupported configuration

In Agent TUI, setting

IPV6 Configuration to Automatic

and enabling

Require IPV6 addressing for this connection

generates a message saying that the feature is not supported. The user is allowed to quit the TUI (formally correct given that we select 'Quit' from the menu, I wonder if the 'Quit' options should remain greyed out until a valid config is applied? ) and the boot process proceeds using an unsupported/not working network configuration

4.13.0-0.nightly-2023-03-07-131556 

1. Feed the agent ISO with an agent-config.yaml file that defines an ipv6 only, static network configuration

2. Boot from the generated agent ISO, wait for the agent TUI to appear, select 'Edit a connection', than change Ipv6 configuration from Manual to Automatic, contextually enable the 'Require IPV6 addressing for this connection' option. Accept the changes.

3. (Not sure if this step is necessary) Once back in the main agent TUI screen, select 'Activate a connection'.
Select the currently active connection, de-activate and re-activate it.

4. Go back to main agent TUI screen, select Quit

The agent TUI displays the following message than quits

Failed to generate network state view: support for multiple default routes not yet implemented in agent-tui

Once the TUI quits, the boot process proceeds

The TUI blocks the possibility to enable unsupported configurations

The agent TUI informs the user about the unsupported configuration the moment it is applied (instead of informing the user the moment he selects 'Quit') and stays opened until a valid network configuration is applied

The TUI should put the boot process on hold until a valid network config is applied

OCP Version: 4.13.0-0.nightly-2023-03-07-131556 

agent-config.yaml snippet

  networkConfig:
    interfaces:
      - name: eno1
        type: ethernet
        state: up
        mac-address: 34:73:5A:9E:59:10
        ipv6:
          enabled: true
          address:
            - ip: 2620:52:0:1eb:3673:5aff:fe9e:5910
              prefix-length: 64
          dhcp: false