[Bug] 合并单元格合并错误

[tianchao1995]

Version

0.20.3

Link to Minimal Reproduction

https://codesandbox.io/p/sandbox/mergecell-fnf9ht?file=%2Fsrc%2Findex.ts%3A76%2C3-76%2C13

Steps to Reproduce

请看案例代码，添加分页信息和不添加时的效果

Current Behavior

合并单元格将聚合结果的那一行也给合并了，显示错误

Expected Behavior

能正确合并单元格

Environment

- OS:
- Browser:
- Framework:

Any additional comments?

No response

[fangsmile]

codescodesanbox的链接 share时需要变成public 否则访问不了 @tianchao1995
可以加飞书群及时沟通

[tianchao1995]

好了，改为public了 @fangsmile