Fix jest test

Author: Alyar

packages/devextreme/js/__internal/grids/grid_core/columns_controller/m_columns_controller.ts

@@ -1743,13 +1743,10 @@ export class ColumnsController extends modules.Controller {
       extend(true, calculatedColumnOptions, {
         allowSorting: false,
         allowGrouping: false,
-      });
-
-      if (columnOptions?.type !== AI_COLUMN_NAME) {
-        calculatedColumnOptions.calculateCellValue = function () {
+        calculateCellValue() {
           return null;
-        };
-      }
+        },
+      });
     }
 
     if (bandColumn) {

packages/devextreme/js/__internal/grids/grid_core/columns_controller/m_columns_controller_utils.ts

@@ -879,7 +879,12 @@ export const mergeColumns = (that: ColumnsController, columns, commandColumns, n
     commandColumnIndex = column && (column.type || column.command) ? getCommandColumnIndex(column) : -1;
     if (commandColumnIndex >= 0) {
       if (needToExtend) {
-        result[i] = extend({ fixed: isColumnFixing }, commandColumns[commandColumnIndex], column);
+        result[i] = extend(
+          { fixed: isColumnFixing },
+          commandColumns[commandColumnIndex],
+          column,
+          { calculateCellValue: commandColumns[commandColumnIndex].calculateCellValue },
+        );
         if (column.type !== GROUP_COMMAND_COLUMN_NAME) {
           defaultCommandColumns = defaultCommandColumns.filter(callbackFilter);
         }