Dropdown gives me a "findDOMNode is deprecated in StrictMode" warning

[sparrowV]

Bug Report

I have the following code in one of my components.
<Dropdown item text={userName}> </Dropdown>

just empty dropdown with no options. It gives me the following warning:

index.js:1 Warning: findDOMNode is deprecated in StrictMode. findDOMNode was passed an instance of RefFindNode which is inside StrictMode. Instead, add a ref directly to the element you want to reference. Learn more about using refs safely here: https://fb.me/react-strict-mode-find-node
    in div (created by Dropdown)
    in RefFindNode (created by Ref)
    in Ref (created by Dropdown)
    in Dropdown (at UserAvatar.js:18)
    in span (at UserAvatar.js:17)
    in UserAvatar (at Header.js:11)
    in div (created by Header)
    in Header (at Header.js:10)
    in div (created by Segment)
    in Segment (at Header.js:9)
    in Header (at Home.js:22)
    in div (at Home.js:21)
    in Home (created by Context.Consumer)
    in Route (at App.js:19)
    in div (at App.js:17)
    in Router (created by BrowserRouter)
    in BrowserRouter (at App.js:16)
    in PersistGate (at App.js:15)
    in Provider (at App.js:14)
    in App (at src/index.js:9)
    in StrictMode (at src/index.js:8)

How can it be fixed?

Steps

Just use Dropdown in on the the components

Expected Result

no warnings

Actual Result

warning that I mentioned above

Version

latest

[layershifter]

Duplicate of #3819.