Sveltekit form actions not returning data when invoked from different route

I'm having issues loading form action response data in Sveltekit, when the form is submitted from a different route to the server action.

The Sveltekit app has the following structure:

/lib  MyForm.svelte/routes  /pageA+page.svelte+page.server.ts  /pageB+page.svelte

// /routes/pageA/+page.server.tsexport const actions: Actions = {  myAction: async () => {    console.log('Form action triggered');    // Do things...    return { success: true, data: 'Result data' }  }};

<!-- /lib/MyForm.svelte --><script lang="ts">  import { enhance } from '$app/forms';  import { page } from '$app/stores';  import type { SubmitFunction } from '@sveltejs/kit';  const mySubmitFunction: SubmitFunction = () => {        console.log('Form Submitted');        return async ({ update }) => {            await update();            console.log('Server has responded');            console.log($page?.form);        };    };</script><form  method="POST"  action="/pageA?/myAction"  use:enhance={mySubmitFunction}><button type="submit">Submit</button></form>

When MyForm.svelte is imported into pageA/+page.svelte, everything runs correctly, and $page?.form is updated with the return data. However, when the form is imported into pageB/+page.svelte, no form data is returned - $page?.form remains null. The action still runs on the client and server side - the console still logs the appropriate messages.

Is this a bug in Sveltekit, or am I missing something here?

EDITAs per the documentation and @brunnerh's answer, updated MyForm.svelte:

<script lang="ts">  import { enhance, applyAction } from '$app/forms';  import { goto } from '$app/navigation';  ...  const mySubmitFunction: SubmitFunction = () => {          console.log('Form Submitted');          return async ({ update, result }) => {              await update();              if (result.type === 'redirect') {                await goto(result.location)              } else {                await applyAction(result);              }              console.log('Server has responded');              console.log($page?.form); // Now correctly prints form result          };      };</script>...