Make <State/> reset on initial change

[IniZio]

Is your feature request related to a problem? Please describe.
For example we have a form that creates / edit an item. If it is null we treat as create. But it takes time for the item to load so:

<State initial={item}></State>

will have problem because even if item is changed from null to the actual info, the store in State will not change accordingly, so we have to not mount it til loaded like this:

{(id === 'create' || item) && <State initial={item}></State>}

Describe the solution you'd like
Add a prop that makes State reset the store again on prop change?

Describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered.

Additional context
Add any other context or screenshots about the feature request here.