Svelte 5: incoherent {:else} in {#each} block

[kuechlerm]

Describe the bug

The content of {:else} in an {#each} block where I iterate over Object.keys(data) is shown in some cases, but not in others.
I would expect:

• do not update the content of {#each} when iterating over something like Object.keys(data) as it is not a $state / $derived
• OR update the content (like it does now), but also show and hide the content of {:else}

To reproduce:

• open REPL
• click button to change second {#each} block

I have a local setup (that I cannot reproduce that quickly in a REPL) where I have a third constellation:
filter data -> no result -> only {:else} content shown -> remove filter -> data AND {:else} content visible

Workaround

{#each Object.keys(data) as key}
  // use key
{/each}

{#if Object.keys(data).length === 0}
  // use instead of {:each}
{/if) 

Reproduction

https://svelte-5-preview.vercel.app/#H4sIAAAAAAAAE5VRXUvDMBT9KyH60EKxqG-xKygqDsQ9rPhiRLr0dovNktLcTkrpf5f0Y84PRCEkueecnHuStDSXCixlTy3V6RYoo5dlSQOKTekKuwOFQANqTV0Jh0RWVLLEmGuuOSpAAtsSGzIjxxZTBK_t_AuOE5mlmB5wKTsNyIqdBUSwcyccZblUCNWHME-VhZ7WHPNaC5RGEzTrtYKXQez5rSM5ytwbEJ-MCMe9X290McFjmi8xRrojoCz84IFV_d1if8ot_cR1FB48TpTJXZxspCVvpiosi0IHjLjTt0eQig1ZrF5B4EkBjfX6p_RJakkBzWCK7bRtmcs3osndfEmG8Thfzq_ub3pJ6Cw7l2RstqmmltcGLNEG-zh_SuOu-q8wD4vk1zRcR6sa0WhitFBSFLP205d2cdKX5LYvo3BQxzSgW5PJXEJGmfuN7rl7Bz-Q-uK6AgAA

Logs

No response

System Info

REPL

Severity

annoyance