Bard content not being json decoded

[johncarter-]

Description

When I save a Bard field the contents of the field in the edit screen is still json.

Steps to reproduce

config\runway.php

    'resources' => [
        \App\Models\MyModel::class => [
            'name' => 'My Model',

            'hidden' => true,
            // 'icon' => '',

            'blueprint' => [
                'sections' => [
                    'main' => [
                        'fields' => [
                            [
                                'handle' => 'title',
                                'field' => [
                                    'type' => 'text',
                                    'validate' => 'required',
                                ],
                            ],
                            [
                                'handle' => 'body',
                                'field' => [
                                    'type' => 'markdown',
                                    'validate' => '',
                                ],
                            ],
                            [
                                'handle' => 'images',
                                'field' => [
                                    'type' => 'assets',
                                    'container' => 'assets',
                                    'validate' => '',
                                ],
                            ],
                            [
                                'handle' => 'bard_content',
                                'field' => [
                                    'always_show_set_button' => false,
                                    'buttons' => [
                                        'h2',
                                        'h3',
                                        'bold',
                                        'italic',
                                        'unorderedlist',
                                        'orderedlist',
                                        'removeformat',
                                        'quote',
                                        'anchor',
                                        'image',
                                        'table',
                                    ],
                                    'save_html' => false,
                                    'toolbar_mode' => 'fixed',
                                    'link_noopener' => false,
                                    'link_noreferrer' => false,
                                    'target_blank' => false,
                                    'reading_time' => false,
                                    'fullscreen' => true,
                                    'allow_source' => true,
                                    'enable_input_rules' => true,
                                    'enable_paste_rules' => true,
                                    'display' => 'Standard Bard Field',
                                    'type' => 'bard',
                                    'icon' => 'bard',
                                    'listable' => 'hidden',
                                ],
                            ],
                        ],
                    ],
                ],
            ],

            'listing' => [
                'columns' => [
                    'title',
                ],

                'sort' => [
                    'column' => 'title',
                    'direction' => 'asc',
                ],
            ]
        ],
  

database\migrations\2021_06_26_211029_create_my_models_table.php

        Schema::create('my_models', function (Blueprint $table) {
            $table->id();
            $table->string('title');
            $table->string('body')->nullable();
            $table->json('images')->nullable();
            $table->json('bard_content')->nullable();
            $table->timestamps();
        });

app\Models\MyModel.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;

class MyModel extends Model
{
    use HasFactory;

    // protected $guarded = [];

    protected $casts = [
        'bard_content' => 'json',
    ];
}

Environment

Statamic 3.1.26 Solo
Laravel 8.48.2
PHP 7.4.19
doublethreedigital/runway 2.0.5

[duncanmcclean]

Thanks, I'll take a look this evening.