[TableBody] passes [null] as children to children it clones

[dantman]

I've been having performance issues with a Table+RadioButton combination, so I was attempting to improve performance by wrapping my TableRow elements in a pure component.

However I discovered that TableBody clones the component I pass to it and calls it in a way that causes [null] to be passed as children to the component.

Since the array object containing null is different each time, this results in standard pure components never acting pure when passed to TableBody.

[oliviertassinari]

We have been porting the component on the v1-beta branch. We reimplemented it from the ground-up. While we haven't tested it, I think that the issue is most likely fixed on that branch. Hence, I'm closing it.
Still, we will accept PR fixes until v1-beta takes over the master branch.