# Vergleich nach Änderung Tiefe Kopie
%Original = (
              "sub1" => {
                          "sub2" => {
                                      "foo" => "bar"
                                    }
                        }
            );

%Tiefe_Kopie = (
                 "sub1" => {
                             "sub2" => {
                                         "foo" => "neu"
                                       }
                           }
               );

# Vergleich nach Änderung einfache Kopie
%Original = (
              "sub1" => {
                          "sub2" => {
                                      "foo" => "hier stand mal bar"
                                    }
                        }
            );

%Einfache_Kopie = (
                    "sub1" => {
                                "sub2" => {
                                            "foo" => "hier stand mal bar"
                                          }
                              }
                  );