Infinite loop with zustand@5.0.0-rc.1

[Romainlg29]

Bug Description

While updating my zustand librairie to v5, i'm getting some errors that were not here with Zustand 4.5.5.

Link: Repository with zustand 5-rc

Reproduction Link

https://stackblitz.com/~/github.com/Romainlg29/use-broadcast

[dai-shi]

Thanks for reporting. Really great to see people try v5-rc.

I think it's the intentional change.
Please check this:

zustand/docs/migrations/migrating-to-v5.md

Lines 92 to 129 in 9e8b7a5

	### Requiring stable selector outputs
	There is a behavioral change in v5 to match React default behavior.
	If a selector returns a new reference, it may cause infinite loops.
	For example, this may cause infinite loops.
	```js
	// v4
	const action = useMainStore((state) => {
	return state.action ?? () => {}
	})
	```
	The error message will be something like this:
	```
	Uncaught Error: Maximum update depth exceeded. This can happen when a component repeatedly calls setState inside componentWillUpdate or componentDidUpdate. React limits the number of nested updates to prevent infinite loops.
	```
	To fix it, make sure the selector function returns a stable reference.
	```js
	// v5
	const FALLBACK_ACTION = () => {}
	const action = useMainStore((state) => {
	return state.action ?? FALLBACK_ACTION
	})
	```
	Alternatively, if you need v4 behavior, `createWithEqualityFn` will do.
	```js
	// v5
	import { createWithEqualityFn as create } from 'zustand/traditional'
	```

[Romainlg29]

Thank you, it's working well with both useShallow and createWithEqualityFn.