typo.

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@1836 71c3de6d-444a-0410-be80-ed276b4c234a

core/src/main/java/hudson/model/Hudson.java

@@ -386,7 +386,7 @@ public final class Hudson extends View implements ItemGroup<TopLevelItem>, Node
             ItemGroup<?> parent = q.pop();
             for (Item i : parent.getItems()) {
                 if(type.isInstance(i))
-                    r.add(type.cast(r));
+                    r.add(type.cast(i));
                 if(i instanceof ItemGroup)
                     q.push((ItemGroup)i);
             }