[Autocomplete] Nested properties in options do not work

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

Current Behavior 😯

When using nested properties in the options property, the autocompletion does not work as expected.

Expected Behavior 🤔

The autocompletion should work with nested properties - I assumed it should work just fine because I thought the component just compares the input with the option label (apparently it doesn’t?).

Steps to Reproduce 🕹

https://codesandbox.io/s/material-demo-37zh6

Steps:

1. Click on the “Combo box” - as you can see there are three options available (the options render correctly)
2. Now type in “m” or “M” or “is” (or whatever) and you will see, the suggestions only show up when using certain letters (for example “j” - the letter isn’t even in a username or in a property)

Context 🔦

It is easier to keep the data structure and immediately use it as-is in the options. In the meantime (or if this isn’t a bug) map would be a workaround.

Your Environment 🌎

Tech	Version
Material-UI	v4.8.2
Material-UI Lab	v4.0.0-alpha.38
React	v16.12.0
Browser	Google Chrome, v79.0.3945.88

[oliviertassinari]

@kartik918 I’m giving up on the idea, better let users customize the filter to avoid unexpected behavior

[oliviertassinari]

Thanks for the interest.