server/pages/index.js
function getInitialServerState( serializedServerState ) {
	// Bootstrapped state from a server-render
	const serverState = initialReducer( serializedServerState, { type: DESERIALIZE } );
	return pick( serverState, Object.keys( serializedServerState ) );
}
function getInitialServerState( serializedServerState ) {
	// Bootstrapped state from a server-render
	const serverState = initialReducer( serializedServerState, { type: DESERIALIZE } );
	return pick( serverState, Object.keys( serializedServerState ) );
}
TODO: Re-use (a modified version of) client/state/initial-state#getInitialServerState here