Describe the bug

Same referenced objects in a list not updated simultaneously, $state handles them as complete different entries.

Reproduction

Here is a minimal example what I get in svelte 4 and can't get in svelte 5

svelte 4 REPL

svelte 5 REPL

So I did implement a workaround by declaring a reactive wrapper class

svelte 5 workaround REPL

with this, at least it works but what I want is also updating raw rows as I refer them as coming from another library/method so I don't want to pass them with their proxified version to other typescript methods and there is a alot of usages so I don't really wanted call $state.snapshot() everytime (also don't want to broke original references).

Well I did come up something like this. using $state.raw and manual reactivity triggering

svelte 5 workaround + bind fix REPL
Not proud of it but works, with a lot of warnings and not sure it will continue to work.

We are migrating svelte 4 to svelte 5 and its a blocking behavior for us.

Logs

System Info

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Severity

blocking an upgrade