`IndexedStore` — `meta.added` property

I am calling client.log.add in the browser code, and the returned metadata does not have the added field.

const client = new CrossTabClient({
    server: (import.meta.env.DEV ?
        'ws://localhost:8765' :
        'wss://logux.example.com'),
    store: new IndexedStore('try-logux'),
    subprotocol: '1.0.0',
    userId: 'anonymous',  // TODO: We will fill it, in Authentication recipe
    token: '123'  // TODO: We will fill it in Authentication recipe
})

// ...

const inc = increment()
const meta = await client.log.add(inc, { sync: true })  // should add `added` here
debug('the increment meta', meta) // <-- does not have 'added' prop

Looking at the source code, we see that 'added' is added to meta. I'm not sure why I don't see it.

Start with indexed-store/index.js around line 55 and trace the shown client.log.add call using IndexedStore. Confirm why the returned metadata lacks added and verify the reproduction once the behavior is corrected.