[2.11.1] Derived atom is not re-evaluated if it read between multiple set

[yuneco]

Bug Description

In the code below, the value of countDerivedAtom is expected to become 2. But in v2.11.1 it become 1. Referencing a derived atom among multiple set calls appears to be the issue.

This problem occurs in v2.11.1 but not in v2.11.0. I suspect it may be a regression introduced by the fix for #2906.

Any advice would be appreciated.

import { atom, useAtomValue, useSetAtom } from "jotai";

const countAtom = atom(0);
const countDerivedAtom = atom((get) => get(countAtom));

const countUpAtom = atom(undefined, (get, set) => {
  set(countAtom, 1);
  get(countDerivedAtom);
  set(countAtom, 2);
});

function App() {
  const countUp = useSetAtom(countUpAtom);
  const count = useAtomValue(countDerivedAtom);

  return (
    <>
      count = {count}
      <button onClick={countUp}>set count 2</button>
    </>
  );
}

export default App;

Reproduction Link

https://codesandbox.io/p/sandbox/3pwcrt

[dai-shi]

Thanks for reporting! I'll look into it.

[dai-shi]

Can you try this? #2960

[yuneco]

Thanks for the quick response!
I checked #2960. Minimum reproduction and all tests in my actual product has passed now.

[yuneco]

fixed in #2960 and released in v2.11.2.