Exempt deletions from dupe flag checking

test/functional/moderator/post/posts_controller_test.rb

@@ -20,6 +20,13 @@ module Moderator
             @post.reload
             assert(@post.is_deleted?)
           end
+
+          should "work even if the deleter has flagged the post previously" do
+            PostFlag.create(:post => @post, :reason => "aaa", :is_resolved => false)
+            post :delete, {:id => @post.id, :reason => "xxx", :format => "js", :commit => "Delete"}, {:user_id => @admin.id}
+            @post.reload
+            assert(@post.is_deleted?)
+          end
         end
 
         context "undelete action" do