Svelte 5 may not auto-unsubscribe from a store

[7nik]

Describe the bug

Svelte 5 may not unsubscribe from a store despite it being not accessible anymore.

Reproduction

REPL

1. Add and remove a watcher
2. Change the number

A log message appears though the store is inaccessible.
Svelte 5 unsubscribes only when a new store assigned to watcherA;

If {$watcherA} appears outside the if block, the bug doesn't occur.

Logs

No response

System Info

Svelte 5 REPL

Severity

annoyance