Tabs2 NPEs if passed null amongst children.

[AndyMoreland]

Goal: conditionally render a tab.

Bug report

• Package version(s): 1.11.1

Steps to reproduce

<Tabs2>
{ null }
</Tabs2>

Actual behavior

Exception

Uncaught TypeError: Cannot read property 'type' of null
    at isTab

Expected behavior

Don't render the tab.

[giladgray]

😱 and i'll bet undefined doesn't work either from looking at the code

[AndyMoreland]

yeah most likely! :-)