Cannot read property 'subscribable' of undefined

[mlefebvre-decathlon]

Describe the bug

Hello everyone,

Since svelte version 3.41, we cannot compile code containing default values in destruct.

Compilation exits with Cannot read property 'subscribable' of undefined

<script>
	const myObject = {};
	const { foo: { bar } = {} } = myObject;
</script>

Svelte 3.40 : works fine
Svelte 3.41 : Error compiling component. Cannot read property 'subscribable' of undefined

This makes us rewrite all these assignements as :

	const { bar } = myObject?.foo ?? {};

Did we miss something in the changelog ?

Reproduction

3.40.3 : https://svelte.dev/repl/3fa45ef9bff943d3acdee9ba35fbc577?version=3.40.3
3.41.0 : https://svelte.dev/repl/3fa45ef9bff943d3acdee9ba35fbc577?version=3.41.0
Current: https://svelte.dev/repl/3fa45ef9bff943d3acdee9ba35fbc577?version=latest

Logs

No response

System Info

Repl environment

Severity

annoyance

[dummdidumm]

Probably related to a change in either #6578 or #6574

[Conduitry]

This should be fixed in 3.42.5 - https://svelte.dev/repl/3fa45ef9bff943d3acdee9ba35fbc577?version=3.42.5