Bug - AlertGroup - React does not recognize `appendTo` prop error

[maxcao13]

Describe the problem
Adding the appendTo prop to an AlertGroup results in a console error of

Warning: React does not recognize the `appendTo` prop on a DOM element. If you intentionally want it to appear in the DOM as a custom attribute, spell it as lowercase `appendto` instead. If you accidentally passed it from a parent component, remove it from the DOM element.

How do you reproduce the problem?
https://codesandbox.io/s/elegant-tree-og19q4?file=/index.js

Expected behavior
There should be no error since appendTo is a valid prop on the AlertGroup component.

Screenshots

[stale]

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