Svelte 5: FLIP animations don't take outroing elements out of the flow

[Rich-Harris]

Describe the bug

In Svelte 4, we remove outroing elements out of the document flow before measuring the destinations of animating elements, so that they gracefully move to their new home:

https://svelte.dev/repl/6e891305e9644a7ca7065fa95c79d2d2?version=4.2.9

In Svelte 5, we... don't. Whether this looks batshit crazypants or merely broken depends on whether you're looking at this before or after #10798 is merged.

Reproduction

see above

Logs

No response

System Info

next

Severity

annoyance

[JonathonRP]

I think this may be a bug affecting my code too, im building a drag n drop component with framer motion port and noticed weird animations.