fix(router): mount correct component if router outlet was not instantiated and if using a route reuse strategy (#25313) (#25314)

This unsets 'attachRef' on outlet context if no route is to be reused in route activation.

Closes #25313

PR Close #25314

packages/router/src/router.ts

@@ -1043,6 +1043,7 @@ class ActivateRoutes {
           const config = parentLoadedConfig(future.snapshot);
           const cmpFactoryResolver = config ? config.module.componentFactoryResolver : null;
 
+          context.attachRef = null;
           context.route = future;
           context.resolver = cmpFactoryResolver;
           if (context.outlet) {