Hey friends!

I noticed a small difference in how React.Children is implemented between preact/compat and React.

preact/compat children: https://github.com/preactjs/preact/blob/master/compat/src/Children.js#L3
react children: https://github.com/facebook/react/blob/121af3143c7164a196420b080cb31d0ef07d5dff/packages/react/src/ReactChildren.js#L223

The different here being that the React implementation allows for a context arg, while the preact/compat version does not. While it's easily fixable on our end, it seemed like the kind of thing which might lead to incompatibilities in library code.