MuiDataGrid-row--dynamicHeight not added to pinned column rows

[mainfraame]

Duplicates

• I have searched the existing issues

Latest version

• I have tested the latest version

Current behavior 😯

Given i have getRowHeight={() => auto}
And a pinned column
When the grid renders
Then MuiDataGrid-row--dynamicHeight is applied to non-pinned rows
And MuiDataGrid-row--dynamicHeight IS NOT applied to pinned rows

Expected behavior 🤔

Given i have getRowHeight={() => auto}
And a pinned column
When the grid renders
Then MuiDataGrid-row--dynamicHeight is applied to non-pinned rows
And MuiDataGrid-row--dynamicHeight IS applied to pinned rows

Steps to reproduce 🕹

Link to live example: https://codesandbox.io/s/dynamicrowheightgrid-demo-mui-x-forked-5pus2b?file=/demo.js

Steps:

1. Using DataGridPro create a grid with one pinned column and getRowHeight={() => 'auto' }
2. Observe that the dynamic row height class is not applied to the pinned column row

Context 🔦

No response

Your environment 🌎

see codesandbox example

Order ID 💳 (optional)

No response

[cherniavskii]

Duplicate of #5137, should be fixed by #5782