Multiple Keys error throws in browser console

[hichana]

Describe the bug
A react component is using the same keys for multiple nested components, causing a multiple keys error. It doesn't seem to effect the functionality of the playground. There are multiple of the same error thrown in the browser, tho I am only adding a screenshot for the first one here below.

To Reproduce
From 'master' branch, load the playground and open the console. to find the error.

Expected behavior
That there wouldn't be an error.

Screenshots

Desktop (please complete the following information):

• OS: Mac OSX big sur
• Browser: Chrome
• Version 94

Additional context
I brought this and other console errors to the attention of @psiemens who indicated they could all be consolidated into a tier3 FLIP bounty.

[justjoolz]

fixed in: justjoolz@fd816cf

[alse]

Fixed