dexie-svelte-query doesn't update like liveQuery

[dfahlander]

I've been using dexie-svelte-query in a Svelte 5 project and in most cases it seemed to work like a charm, but then I stumbled on a situation where it doesn't seem to monitor the underlying data correctly.

I'm rendering an array of attachments based on a live query. The first sample below does not update correctly while the other one (plain liveQuery with $ vars, updates correctly):

Not updating correctly:

  const localDraftQuery = stateQuery(
    () =>
      db.localDrafts.where("conversationId").equals(conversationId).first(),
    () => [conversationId]
  );
  const localDraft = $derived(() => localDraftQuery?.current);
  const attachments = $derived(localDraft()?.attachments ?? []);

Updating Correctly!:

  const localDraft = $derived(liveQuery(() => db.localDrafts.where("conversationId").equals(conversationId).first()));
  const attachments = $derived($localDraft?.attachements ?? []);

Unfortunatetely, I have no complete repro right now to share.

Related PR: #2116
Source of the svelte-query library: /libs/dexie-svelte-query/src/lib/stateQuery.svelte.ts