WW-1724

Merged from trunk to 2_0_X branch.
The request context for Struts 2 - Tiles 2 integration tries to dispatch the request if possible.
It includes it only if the response has been committed, or if it is a FreeMarker request (this must be fixed).

git-svn-id: https://svn.apache.org/repos/asf/struts/struts2/branches/STRUTS_2_0_X@557352 13f79535-47bb-0310-9956-ffa450edef68

plugins/tiles/src/main/java/org/apache/struts2/tiles/StrutsTilesRequestContext.java

@@ -79,7 +79,12 @@ public class StrutsTilesRequestContext extends TilesRequestContextWrapper {
     }
 
     public void dispatch(String include) throws IOException {
-        include(include);
+    	if (include.endsWith(mask)) {
+            // FIXME This way FreeMarker results still don't have a content-type!
+    	    include(include);
+        } else {
+            super.dispatch(include);
+        }
     }
 
     /**