universal routes capture existing onfail callback (fix #1470)

src/Features/UniversalRoutes.php

@@ -23,11 +23,18 @@ class UniversalRoutes implements Feature
     public function bootstrap(Tenancy $tenancy): void
     {
         foreach (static::$identificationMiddlewares as $middleware) {
-            $middleware::$onFail = function ($exception, $request, $next) {
+            // preserve any onFail callback set before universal routes bootstraps
+            $customOnFail = $middleware::$onFail;
+
+            $middleware::$onFail = function ($exception, $request, $next) use ($customOnFail) {
                 if (static::routeHasMiddleware($request->route(), static::$middlewareGroup)) {
                     return $next($request);
                 }
 
+                if ($customOnFail instanceof Closure) {
+                    return $customOnFail($exception, $request, $next);
+                }
+
                 throw $exception;
             };
         }

tests/UniversalRouteTest.php

@@ -88,6 +88,24 @@ class UniversalRouteTest extends TestCase
             ->assertSuccessful()
             ->assertSee('Tenancy is initialized.');
     }
+
+    #[Test]
+    public function universal_route_runs_custom_failed_initialization_override()
+    {
+        InitializeTenancyByDomain::$onFail = function () {
+            return 'custom failed logic.';
+        };
+
+        Route::middlewareGroup('universal', []);
+        config(['tenancy.features' => [UniversalRoutes::class]]);
+
+        Route::get('/foo', fn () => 'Tenant route')
+            ->middleware([InitializeTenancyByDomain::class]);
+
+        $this->get('http://acme.localhost/foo')
+            ->assertSuccessful()
+            ->assertSee('custom failed logic.');
+    }
 }
 
 class UniversalRouteController