The Select component is no longer accessible as of v4.0 if the Select input does not have a selected option.

• This is not a v3.x issue.
• I have searched the issues of this repository and believe that this is not a duplicate.

Expected Behavior 🤔

If rendering a Select component that does not have a selected value, the options should be accessible via the keyboard

Current Behavior 😯

The options are only available if there is a selection already made. (Note: This bug does not occur in MUI v3.x)

Steps to Reproduce 🕹

Link:

1. sandbox

Context 🔦

Your Environment 🌎