datatable throw error when has summary row and selection column

[coader]

TuSimple/naive-ui version (版本)

2.19.3

Vue version (Vue 版本)

3.2.19

Browser and its version (浏览器及其版本)

Chrome 91

System and its version (系统及其版本)

Win10

Node version (Node 版本)

Reappearance link (重现链接)

https://codesandbox.io/s/cool-sunset-cw41g?file=/src/Demo.vue

Reappearance steps (重现步骤)

error at:

                    const mergedColSpan = isSummary
                        ? rowInfo.rawNode[colKey].colSpan || 1
                        : colSpan
                            ? colSpan(rowData, rowIndex)
                            : 1;

it should find colKey with 'n_selection'

Expected results (期望的结果)

change to rowInfo.rawNode[colKey]? rowInfo.rawNode[colKey].colSpan：1

Actual results (实际的结果)

.

Remarks (补充说明)

[coader]

i have to add this property to summary row object and it's ok
return [{ 'n_selection': { colSpan: 1 }, ... ]