DataTable: Expander with grouping

Describe the bug

I wanted to create table where there would be grouping by 2. Let's say if in case of working with months it would be like first 2 weeks and last two weeks. Inside those I wanted to be able to expande that row for first two weeks where I would have days or smetginh else. But... Since in this example below I have group of two and that td has rowspan of 2, as soon as I do the expand goes off becase rowspan stays the same and now we have 3 insted of 2 rows or maybe even 4 if we expand both first and second week. I've tried to manualy set number of rowspan for that column but it's not working as expected. Is there a solution or workaround?

Reproducer

https://codesandbox.io/s/primereact-demo-forked-fsljr7?file=/src/App.tsx

PrimeReact version

9.5.0

React version

18.x

Language

TypeScript

Build / Runtime

Create React App (CRA)

Browser(s)

Chrome

Steps to reproduce the behavior

No response

Expected behavior

No response

Start by running the linked CodeSandbox reproducer with PrimeReact 9.5.0 and inspect the DataTable grouping and row-expansion configuration. Compare the rowspan behavior as grouped rows expand; the work is done when the interaction has a documented supported solution or workaround that preserves the grouped layout.