help: two almost working decorators input.value, update field meta.data

I tried using spy's and form.change and input.onChange api..

Seem to be getting the following error
``
warning.js:33 Warning: Cannot update during an existing state transition (such as within `render` or another component's constructor). Render methods should be a pure function of props and state; constructor side-effects are an anti-pattern, but can be moved to `componentWillMount`.
``

I tried to give a good explanation on how it could/should work...

any one want to take a crack at it see: https://codesandbox.io/s/98j6554q3o ?