Integer field type does not allow null values for config

[maurice-ellis]

Bug description

#1203 allows for null except for config. I'm not sure the reason for this, but I'm in a situation where I need to set the max value to null, so that there will not be a maximum.

How to reproduce

Set integer default to null in config fields and it will be set as 0. The code prevents null values from being set.

public function preProcessConfig($data)
{
    return (int) $data;
}

Logs

No response

Environment

Application Name: Laravel
Laravel Version: 10.30.1
PHP Version: 8.2.3
Composer Version: 2.4.4
Environment: local
Debug Mode: ENABLED
URL: localhost
Maintenance Mode: OFF

Cache
Config: NOT CACHED
Events: NOT CACHED
Routes: NOT CACHED
Views: CACHED

Drivers
Broadcasting: log
Cache: statamic
Database: mysql
Logs: stack / single
Mail: smtp
Queue: sync
Session: file

Statamic
Addons: 2
Antlers: runtime
Stache Watcher: Enabled
Static Caching: Disabled
Version: 4.31.0 PRO

Statamic Addons
thrtwoe/builder: dev-main
thrtwoe/jumpstart: dev-main

Installation

Fresh statamic/statamic site via CLI

Antlers Parser

None

Additional details

Believe there is a need for nulls for integers specifically when it's used to prevent max or min from being set.

[duncanmcclean]

Can you provide your blueprint?

[maurice-ellis]

'display' => __('Behavior'),
'fields' => [
    'min' => [
        'display' => __('Min'),
        'instructions' => __('jumpstart::fieldtypes.config.min'),
        'type' => 'integer',
        'default' => 0,
    ],
    'max' => [
        'display' => __('Max'),
        'instructions' => __('jumpstart::fieldtypes.config.max'),
        'type' => 'integer',
    ],
    'step' => [
        'display' => __('Step'),
        'instructions' => __('jumpstart::fieldtypes.config.step'),
        'type' => 'text',
        'default' => 1,
    ],
    'default' => [
        'display' => __('Default Value'),
        'instructions' => __('jumpstart::fieldtypes.config.default'),
        'type' => 'text',
        'input_type' => 'number',
        'default' => null,
    ],
]