message: Add comment explaining SafeInput
diff: @@ -16,6 +16,12 @@ import { track, en } from 'lib/analytics.coffee';
  const { REDIRECT_TO } = require('sharify').data;
  +// We need to handle the states between server rendered react
  +// and client-rendered react. Firefox was firing the onChange event
  +// (for auto-filled inputs)
  +// before the client was initialized. More info here:
  +// https://github.com/facebook/react/issues/2585
  +//
  const Input = styled(SafeInput)`
  ${mixin}
  `;
  