Seed unlocked fields should allow null.

[bloveless]

When seeing an unlocked field I.E.

        'name'    => [
            'type'   => 'anomaly.field_type.text',
            'locked' => 0,
            'en'     => [
                'name'         => 'Name',
                'placeholder'  => '',
                'instructions' => '',
                'warning'      => ''
            ]

        ],

placeholder, instructions, and warning have to be an empty string or they will get a translation string rather than an empty string. This should work with null also.

[RyanThompson]

Note to self: change tests to isset() instead of the null / ! value checks (migrations)

[RyanThompson]

laravel-streams/streams-core@bfe68a3