ComboBox in config flow

Development
1

I have a “vol.In” column in config entry, it shows a comboBox in front end before. But, when I update HA to 2022.6.4, **vol.In** change the format from comboBox to check box in the front end, I want to show the list by comboBox like before. It seems like the selector also can’t solve my problem. Two ways below doesn’t work, both of them are showing check boxes. What did I wrong and what should I do?

SCHEMA_CAMERA = vol.Schema(
    {
        vol.Optional(CONF_CAMERA_IP, default=False): vol.In(CONF_IP_LIST),
    }
)

SCHEMA_CAMERA = vol.Schema(
    {
        vol.Required(CONF_CAMERA_IP): selector.SelectSelector(
        selector.SelectSelectorConfig(options=CONF_IP_LIST),
        ),
    }
)
2

If objects of list more than 5, then the radio box will turn to comboBox.
If we want it shows as comboBox, then we can use “selector” not vol.In.