fix(grid): fix the key of cell in grid component to rerender correctly (

#2068)

Co-authored-by: zhengningning <[email protected]>

packages/zent/src/grid/Row.tsx

@@ -73,14 +73,15 @@ class Row<Data> extends PureComponent<IGridRowProps<Data>> {
           column: columnIndex,
           fixed,
         };
+        const columnKey = column.name || columnIndex;
 
         cells.push(
           <Cell
             column={column}
             data={data}
             pos={pos}
             columnIndex={columnIndex}
-            key={columnIndex}
+            key={columnKey}
             prefix={prefix}
           />
         );