Remote Functions: If query isn't used elsewhere, it gets re-fetched every time it's used in `.updates()`

Describe the bug

If I have a form like this:

<form {...addTodo.enhance(async ({ data, submit }) => {
  await submit().updates(
    get_todos().withOverride((todos) => [...todos, { text: data.get('text') }])
  );
}}>

but for whatever reason get_todos() isn't currently being used elsewhere on the page (i.e. the todos component isn't mounted) the following issue happens:

1. SvelteKit calls create_remote_function
2. Cache miss - query_map doesn't contain get_todos()
3. SvelteKit initializes get_todos() and makes a fetch request to the endpoint
4. get_todos() gets cached
5. get_todos() gets immediately removed from the cache, because there are no references to it
6. Repeat steps 2-5, every time the form is submitted.

Reproduction

link

Logs

System Info

System:
    OS: Linux 5.0 undefined
    CPU: (8) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
    Memory: 0 Bytes / 0 Bytes
    Shell: 1.0 - /bin/jsh
  Binaries:
    Node: 20.19.1 - /usr/local/bin/node
    Yarn: 1.22.19 - /usr/local/bin/yarn
    npm: 10.8.2 - /usr/local/bin/npm
    pnpm: 8.15.6 - /usr/local/bin/pnpm
  npmPackages:
    @sveltejs/adapter-auto: ^6.0.0 => 6.1.0 
    @sveltejs/kit: ^2.22.0 => 2.36.1 
    @sveltejs/vite-plugin-svelte: ^6.0.0 => 6.1.3 
    svelte: ^5.25.0 => 5.38.2 
    vite: ^7.0.4 => 7.1.3

Severity

serious, but I can work around it

Additional Information

No response

Start with the linked StackBlitz reproduction and confirm the repeated fetch during form submissions. Then trace create_remote_function, query_map, and the .updates() path to understand why an unreferenced get_todos() query is removed immediately; done means repeated submissions no longer re-fetch it unnecessarily.