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Graph/stale-closure-state-updates

Pattern

Stale Closure State Updates

stale-closure-state-updates

Stale closures and miswired state setters cause asynchronous submit/save flows to read or compute against outdated selected/model values, so change-detection and timestamp fields like lastModifiedAt drift or never update correctly.

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Public graph metadata

Updated6/29/2026

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30 linked nodes

Zustand persist middleware does not write during the test setup

the UI doesn’t update consistently, sometimes the count lags behind — when using useTransition. Tension: especially after fast re-renders or route changes. Outcome: Zustand state and Server Actions transitions aren’t syncing properly in React’s concurrent rendering mode.

Updating `storagePolicySettings` in a Zustand store does not work as expected when using `set((state) => ({ ...state, storagePolicySettings }))` after fetching data.

Calling setAuthToken updates the internal value but components using authToken do not reflect the change and the UI/state appears stale.

Updating an input causes the entire React app to refresh/re-render, even though only part of the Zustand state should change.

Update a Zustand store so that `lastModifiedAt` is automatically set to `Date.now()` whenever the store state changes, without manually adding it to every `set()` call.

Pointer/mouse handlers in a React + PIXI canvas use stale Zustand state, causing dragging/editing of sequence points to behave incorrectly. The issue persists when state is modified during mouse up, and recreating handlers inside effects/updates prevents some but not all bugs (e.g., cannot drag twice).

A Zustand store value (e.g., currentUser) logs as null on first access, but becomes correct after a rerender. This suggests the expected persisted data hasn’t finished loading yet.

A Zustand store updates a `time` value every second via `setInterval`, but child components that consume the store do not re-render to reflect the updated time.

When changing `isResultReturned` state inside a shadcn `Dialog` component, the dialog closes/disappears unexpectedly. The state also appears not to update as expected when calling `setIsResultReturned(false)`.

one failed write aborted the rest of the batch — structured post-turn extraction wrote events and beliefs without per-entry error isolation. Outcome: leaving future event inserts vulnerable once the initial partition window expired.

Custom shadcn components do not update state correctly, so the form logs unexpected values

Using a Zustand store to control TanStack Table v8 state causes errors because the table calls change handlers with an updater function, but the store setters only accept raw values.

my template is keep displaying "Loading..". Tension: Additionally, watcher is not triggered. Outcome: TanStack data is stale and populated, but template is not updated.

The idea is to update this model once hourly without blocking the API's ability to respond. Tension: update this model once hourly without blocking the API's ability to respond to CPU-bound tasks. Outcome: this is all good.

updating the Subscription with a pending update while it's attached to a Subscription Schedule - which works — while it's attached to a Subscription Schedule. Tension: the update at Subscription-level isn't reflected on the Subscription Schedule. Outcome: you might need to modify the phases slightly depending on your use-case.

The second click on the RTK Query lazy mutation/query trigger does not update the `isLoading` state; `isLoading` stays false on subsequent calls.

Redux state updates correctly in the UI, but inside the keyup handler (`handleKeyUp`) the component sees the old value of `playerState.isMenuUIVisible`. As a result, conditional logic (e.g., Escape handling) doesn’t run when expected.

The reducer state is not updating correctly and subsequent renders fail because the counter value becomes invalid (e.g., NaN) instead of changing from its initial value.

Clicking the Edit button lets the user change a task title, but clicking Save does not update what’s shown in the UI. Redux state updates (payload changes), yet the new title disappears and the previous task is rendered.

Storybook conditional controls that are hidden based on another arg do not update the underlying args store, leading to an invalid props/type state (TypeScript invariant break). Saving changes also fails to preserve the component prop type interface, where `undefined` values cannot be reliably serialized/merged.

Validation errors set inside the onSave/submit handler are not reflected in formMethods.formState.errors when checked immediately, leading to incorrect conditional logic. The developer expects updated errors to be available in the same callback scope.

Using `useInterval` with `setInterval(savedCallback.current, 1000)` causes the counter to stop incrementing as intended, unlike wrapping the call in an anonymous function. The interval setup no longer updates state correctly.

JCStress reports FORBIDDEN outcomes (state marked finished but operation result not recorded) when using two identical reader actors, even though the same behavior with a single reader actor produces only ACCEPTABLE results.

Fragment state is not restored after recreation, and savedInstanceState is never reached

updated from Spring Boot 3.3.6 to version 3.4.0. Tension: musterMetadatenRepository.saveAndFlush(musterEntity); // crashes here. Outcome: org.springframework.orm.ObjectOptimisticLockingFailureException: Row was updated or deleted by another transaction.

Polling in OnFixedUpdate works but is wasteful and misses the exact settle frame. — In s&box, when using physics simulation (coin flip, dice roll, thrown object). Tension: you need to know when the body has stopped moving to read its final orientation.

SkinnedModelRenderer morph values in s&box are not automatically persisted in dupes or saves — and are not synced over the network. Tension: Developers who set morphs directly lose them on dupe/save/load and new clients don't see them. Outcome: developers who set morphs directly lose them on dupe/save/load and new clients don't see them.

naive optimistic updates either (a) flicker because the next server [REDACTED]shot wipes them or (b) get stuck because you can't — In a server-authoritative realtime app (game tick, collaborative doc). Tension: the next server [REDACTED]shot wipes them. Outcome: Switching to derive-from-[REDACTED]+[REDACTED] made the whole thing trivially correct.

Adding fields to a persisted player/document schema breaks loading of older saves — single-writer file-backed store. Outcome: every read produces a current-shape object.

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