Render an array of Components throws exception

[matma]

Hi,
One of the React 16 feature is possibility to render an array of components. Simple code like in this jsfiddle renders with no problem.

The same code under shallow (or any other type of rendering) will fail.

Code I use to test:

it('test', () => {
    const buttons = [
        <button key="A">A</button>,
        <button key="B">B</button>,
        <button key="C">C</button>,
    ];

    const wrapper = shallow(buttons);

    console.log(wrapper.debug());
});

It fails with such message:

Invariant Violation: ReactShallowRenderer render(): Invalid component element.
...

[ljharb]

Duplicate of #1149.