Laravel 9.31.0 does not generate IDs anymore

[fosron]

None of my models seem to generate mongodb IDs anymore. I'm trying to figure out what's happening, but to no avail at the moment.

<?php

class Message extends \Jenssegers\Mongodb\Eloquent\Model
{ 
    use \Illuminate\Database\Eloquent\Factories\HasFactory, \Jenssegers\Mongodb\Eloquent\HybridRelations;
    protected $connection = 'mongodb';

    protected $collection = 'messages';
}

$message = new Message();
$message->save();

$message->getKey();
// null

$message->getKeyName();
// _id

[fosron]

I have to add this trait for the ID to generate, can not yet make sure if it works properly - like does it add it to relations, does Mongo get proper ObjectID type when data is inserted.

Code is influenced by HasUuid concern from Laravel 9.x

<?php

use Illuminate\Support\Str;
use MongoDB\BSON\ObjectId;

trait HasMongoIds
{
    /**
     * Generate a primary MongoID for the model.
     *
     * @return void
     */
    public static function bootHasMongoIds()
    {
        static::creating(function (self $model) {
            if ($model->getKeyName() === '_id' && !$model->getKey()) {
                $model->setAttribute('_id', new ObjectID);
            }
        });
    }
}

[fosron]

Issue should be fixed in the next framework release laravel/framework#44247