URL::defaults() for tenant param and implicit model bindings

[2acode]

Laravel Version: 11.20.0
PHP Version: 8.3.7
Database Version: MySQL 8.0.39

Hi,
I'm trying to create a multitenant application based on subdomain.

Routes are grouped by domain:

Route::domain('{subdomain}.domain.it')->middleware('auth')->group(function () {
foreach (glob(__DIR__ . '/web/*.php') as $filename) {
require $filename;
}
});

I created a middleware that sets database, root for filesystem and sets default parameter:

namespace App\Http\Middleware;

use Closure;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\URL;

class SetTenant { public function handle($request, Closure $next) { $host = request()->getHost();
 $subdomain = explode('.', $host)[0];

 config([ 'database.connections.erp.database' => $subdomain, 'filesystems.disks.erp.root' => $subdomain, ]);

 DB::reconnect();

 URL::defaults(['subdomain' => $subdomain]);

 return $next($request);
 }
}

I added the middleware in bootstrap\app.php:

->withMiddleware(function (Middleware $middleware) {
$middleware->append(SetTenant::class);
}

So far everything works fine.

However, when I click on a link that requires a model bind (eg. Route::get('customers/{customer}', 'CustomerController@show')) I get the error "App\Http\Controllers\Customers\CustomerController::show(): Argument #1 ($customer) must be of type App\Models\Customer, string given"

So it seems that $subdomain is used instead of the id.

As specified in the guide here:
https://laravel.com/docs/11.x/urls#url-defaults-middleware-priority

I tried to set the middleware priority by setting it before SubstituteBindings but the problem remains:

->withMiddleware(function (Middleware $middleware) {
$middleware->priority([
\App\Http\Middleware\SetTenant::class,
\Illuminate\Routing\Middleware\SubstituteBindings::class,
]);

$middleware->append(SetTenant::class);
}

To set the priority is it enough to indicate the two middleware involved?
Should I use the append method or does this not use the set priority?

Thanks