Explicit route model binding broken in Broadcasting

[mikerockett]

• Laravel Version: 8.30
• PHP Version: 7.4.15
• Database Driver & Version: Not Relevant

Description:

After upgrading to Laravel 8.30 this morning, explicit route model binding is not working in Broadcasting.

Likely related to: 8c5292e / #36375

Reporting as a bug, as this appears to be a breaking change.

Steps To Reproduce:

// in a service provider
$router->model('someModel', SomeModel::class);

// in routes
Broadcast::channel('SomeModel.{someModel}', SomeModelPresenceChannel::class);

// in SomeModelPresenceChannel
public function join(User $user, SomeModel $someModel): array
{
    return $user->broadcastProfile();
}

Results in this being thrown:

[9:06:08 AM] - 1ExhRwpqR3TUtF43AAAA could not be authenticated to presence-SomeModel.65
{
    "message": "Too few arguments to function Illuminate\\Routing\\RouteBinding::Illuminate\\Routing\\{closure}(), 1 passed and exactly 3 expected",
    "exception": "ArgumentCountError",
    "file": "/path/to/vendor/laravel/framework/src/Illuminate/Routing/RouteBinding.php",
    "line": 60,
    …
}

[mikerockett]

Just to confirm, downgrading to 8.29.0 without any other changes fixes the issue.