[FrameworkBundle] fixed _internal route when the path contains dots

src/Symfony/Bundle/FrameworkBundle/Resources/config/routing/internal.xml

@@ -6,5 +6,7 @@
 
   <route id="_internal" pattern="/{controller}/{path}.{_format}">
     <default key="_controller">FrameworkBundle:Internal:index</default>
+    <requirement key="path">.+</requirement>
+    <requirement key="_format">[^.]+</requirement>
   </route>
 </routes>