[Grid] Wrong grid item width for nested containers with custom columns prop

Duplicates

• I have searched the existing issues

Latest version

• I have tested the latest version

Current behavior 😯

Cell width is calculating incorrect for nested containers with custom columns prop.

<Grid container columns={11}>
    <Grid item xs={4}>
        <Grid container>
            <Grid item xs={12}>
                Calculated width is 109.090909%
            </Grid>
        </Grid>
    </Grid>
    <Grid item xs={4}>
        <Grid container columns={12}>
            <Grid item xs={12}>
                Calculated width is 109.090909%
            </Grid>
        </Grid>
    </Grid>
    <Grid item xs={3}>
        ...
    </Grid>
</Grid>

So, the value of columns prop from top-level container is used for calculating all item widths. All nested columns props are ignored.

I guess, this issue is related to #28554

Expected behavior 🤔

Cell width should be calculating based on columns prop value of the parent grid container.

Steps to reproduce 🕹

No response

Context 🔦

No response

Your environment 🌎

`npx @mui/envinfo`

  System:
    OS: macOS 11.6.1
  Binaries:
    Node: 16.8.0 - /usr/local/bin/node
    Yarn: 1.22.11 - /usr/local/bin/yarn
    npm: 7.21.0 - /usr/local/bin/npm
  Browsers:
    Chrome: 96.0.4664.110
    Edge: Not Found
    Firefox: 92.0
    Safari: 15.1
  npmPackages:
    @emotion/react: ^11.5.0 => 11.6.0 
    @emotion/styled: ^11.3.0 => 11.6.0 
    @mui/base:  5.0.0-alpha.55 
    @mui/icons-material: ^5.0.4 => 5.1.1 
    @mui/lab: ^5.0.0-alpha.55 => 5.0.0-alpha.55 
    @mui/material: ^5.1.0 => 5.1.1 
    @mui/private-theming:  5.1.1 
    @mui/styled-engine:  5.1.1 
    @mui/system:  5.1.1 
    @mui/types:  7.1.0 
    @mui/utils:  5.1.1 
    @types/react: ^17.0.0 => 17.0.35 
    react: ^17.0.2 => 17.0.2 
    react-dom: ^17.0.2 => 17.0.2 
    typescript: ^4.4.3 => 4.4.4 

[michaldudak]

@AlexKrupko indeed, this doesn’t look correct.

[ConnerAiken]

Thanks @boutahlilsoufiane, my 9-5 is blocking me from helping.