Child ref function called again with CSSTransitionGroupChild

[fdev]

Current behavior
The ref function given to the child component is called with both the child component refence and the CSSTransitionGroupChild component.

Expected behavior
The ref function should on be called with the child component.

Steps to reproduce
See the example and console output on https://codesandbox.io/s/5v2nm9zo0l?expanddevtools=1

References
Related issue in react-transition-group can be found at reactjs/react-transition-group#29 (merged fix in reactjs/react-transition-group#39)

[marnusw]

Thank you for reporting this and for the reference to the merged fix. I will take a look.

[marnusw]

I'm sorry it took months to get round to this. I've published 4.0.2-beta.0 with a fix. Would you be able to confirm that everything now works as expected? I don't have a real use case for it so it's hard to be definitive in saying that it works.

[fdev]

I have forked the sandbox example to use version 4.0.2-beta.0 and the issue seems to have been fixed, thanks!