Outlined/Filled Selects in docs are broken

[Ajaay]

Outside of the official docs site, the outlined and filled variants of the Selects are not displayed as outlined or filled. They show as the 'regular' old style select.

This can be seen easily by editing the doc examples in codesandbox.

• [x ] The issue is present in the latest release.
• [x ] I have searched the issues of this repository and believe that this is not a duplicate.

Current Behavior 😯

Passing variant="outlined" or variant="filled" props does not alter the styling of Select.

Expected Behavior 🤔

Expect that an outlined or filled variant is displayed as per the docs.

Steps to Reproduce 🕹

https://codesandbox.io/s/material-demo-vy49c

[oliviertassinari]

Arf, ok, thanks for the report. I'm reverting the docs changes.

[oliviertassinari]

Deployment in progress.

[oliviertassinari]

This is a new API, wait for the next release :)