preact-compat React.Children.toArray falsey value handling incompatible with react

[mrawdon]

The component <Demo title="Hello, World!" > <div/> <div/> {null} {false} {undefined} </Demo> will have 5 children(counting all falsey values) in preact-compat while only 2 in react.

react
https://codepen.io/anon/pen/xLQWXG
preact-compat
https://codepen.io/anon/pen/wqQmqy

[marvinhagemeister]

This is resolved in Preact X 🎉 Make sure to alias preact/compat instead of preact-compat.