                         key: 1
                     ),
                     ],
-                "MS(0,1)DS(2)ME((item: 0, section: 0),(item: 1, section: 1))"
+                "MS(0,1)DS(2)ME((0,0),(1,1))"
             )
         ]
 

                        key: 2
                    ),
                ],
                "MS(0,1)IS(2)ME((item: 0, section: 1),(item: 1, section: 0))"
            ),
            (
                [

                    KeyedIntArray(elements: [1, 2], key: 0),
                    KeyedIntArray(elements: [1], key: 1),
                ],
                "MS(0,1)ME((0,1),(1,0))"
            ),
            (
                [
