Document that @ResponseStatus overrides redirect views

Issue: SPR-13439

spring-web/src/main/java/org/springframework/web/bind/annotation/ResponseStatus.java

@@ -30,7 +30,8 @@ import org.springframework.http.HttpStatus;
  * {@link #reason} that should be returned.
  *
  * <p>The status code is applied to the HTTP response when the handler
- * method is invoked.
+ * method is invoked and overrides status information set by other means,
+ * like {@code ResponseEntity} or {@code "redirect:"}.
  *
  * <p><strong>Warning</strong>: when using this annotation on an exception
  * class, or when setting the {@code reason} attribute of this annotation,

src/asciidoc/web-mvc.adoc

@@ -2789,6 +2789,9 @@ name such as `redirect:/myapp/some/resource` will redirect relative to the curre
 Servlet context, while a name such as `redirect:http://myhost.com/some/arbitrary/path`
 will redirect to an absolute URL.
 
+Note that the controller handler is annotated with the `@ResponseStatus`, the annotation
+value takes precedence over the response status set by `RedirectView`.
+
 
 [[mvc-redirecting-forward-prefix]]
 ==== The forward: prefix