gqty tries to update an unmounted component

[noverby]

I get the warning Warning: Can't perform a React state update on an unmounted component.
The warning happens when I navigate around my web app, and by that mount and unmount components that uses subscriptions.
After the warning occurs, all subscriptions will not update anymore.

There have been a similar issue in apollo: apollographql/apollo-client#6209

The check in gqty for whether the relevant component is mounted does not seem to work.

Full stack trace:

Warning: Can't perform a React state update on an unmounted component. This is a no-op, but it indicates a memory leak in your application. To fix, cancel all subscriptions and asynchronous tasks in a useEffect cleanup function.
PollChartSub@webpack-internal:///./components/poll/PollChartSub.tsx:128:14 next-dev.js:32:25
    error next-dev.js:32
    overrideMethod react_devtools_backend.js:3973
    React 5
    useForceUpdate common.mjs:28
    useDeferDispatch common.mjs:97
    onChange common.mjs:310
    (Async: promise callback)
    unsubscribeCache common.mjs:221
    sendCacheChange index.mjs:9
    scanNormalizedObjects index.mjs:129
    mergeCache dataCache.mjs:23
    onData resolvers.mjs:372
    callback index.mjs:57
    handler client.mjs:253
    handleMessage client.mjs:188
    onmessage client.mjs:66
    (Async: EventHandlerNonNull)
    connect client.mjs:65
    createSubscription client.mjs:238
    execSubscribe index.mjs:63
    subscribe index.mjs:31
    buildAndSubscribeSelections resolvers.mjs:445
    resolveSelections resolvers.mjs:541
    resolveSchedulerSelections client.mjs:61
    fetchSelections index.mjs:111
    execFetch debounce.mjs:6
    (Async: setTimeout handler)
    debounced debounce.mjs:14
    addSelectionToScheduler index.mjs:162
    addSelection index.mjs:13
    addSelection index.mjs:51
    resolve index.mjs:338
    get index.mjs:376
    parseData PollChart.tsx:38
    PollChart PollChart.tsx:63
    React 9
    unstable_runWithPriority scheduler.development.js:468
    React 2