Concurrency with useTransition

The log below comes from the product search from the previous lesson, after a single change: the list's state update is wrapped in startTransition. We changed the input from empty to "sho" in one event, as a paste would, and that one change produced two renders of ProductSearch instead of one.

ProductSearch render query="sho" listQuery="" isPending=true
ProductSearch render query="sho" listQuery="sho" isPending=false
  ProductList render query="sho" rows=40

In the first render the input already shows "sho", but the list still uses the old query, and `ProductList