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62cd5af08e
Prior to #26347, our internal `act` API (not the public API) behaved differently depending on whether the scope function returned a promise (i.e. was an async function), for historical reasons that no longer apply. Now that this is fixed, I've codemodded all async act scopes that don't contain an await to be sync. No pressing motivation other than it looks nicer and the codemod was easy. Might help avoid confusion for new contributors who see async act scopes with nothing async inside and infer it must be like that for a reason.
react-refresh
This package implements the wiring necessary to integrate Fast Refresh into bundlers. Fast Refresh is a feature that lets you edit React components in a running application without losing their state. It is similar to an old feature known as "hot reloading", but Fast Refresh is more reliable and officially supported by React.
This package is primarily aimed at developers of bundler plugins. If you’re working on one, here is a rough guide for Fast Refresh integration using this package.