Enable utf8 mode for the router on 4.2

symfony/routing/4.2/config/packages/dev/routing.yaml

@@ -0,0 +1,3 @@
+framework:
+    router:
+        strict_requirements: true

symfony/routing/4.2/config/packages/routing.yaml

@@ -0,0 +1,4 @@
+framework:
+    router:
+        strict_requirements: ~
+        utf8: true

symfony/routing/4.2/config/routes.yaml

@@ -0,0 +1,3 @@
+#index:
+#    path: /
+#    controller: App\Controller\DefaultController::index

symfony/routing/4.2/manifest.json

@@ -0,0 +1,6 @@
+{
+    "copy-from-recipe": {
+        "config/": "%CONFIG_DIR%/"
+    },
+    "aliases": ["router"]
+}