tutorial: API routes / POST handlers | not updating correctly

[stephane-vanraes]

Describe the bug

https://svelte.dev/tutorial/kit/post-handlers

adding a todo does not update the page until it refreshes (add some spaces to the code)
somehow the deep reactivity is broken

---

changing the part where you add the todo to the list to a more "v4-style" does work correctly

data = {
  ...data, 
  todos: [...data.todos, {
     id,
     description
  }
]}

Reproduction

go to https://svelte.dev/tutorial/kit/post-handlers
click 'solve'
add a todo -> nothing changes
add whitespace in code editor -> todo appears!!

Logs

No response

System Info

whatever the tutorial runs on :)

Severity

annoyance

[danloomer]

Ah– I just reported this same issue on svelte.dev: sveltejs/svelte.dev#786

[dummdidumm]

Closing in favor of the issue on svelte.dev, we need to adjust the tutorial