BUG: Expense shown as paid although paid-switch is off/deactivated

[n1smithy]

Setup

• Version: v5.10.4-L160
• Environment: Docker

Interface

• Flutter: [X]
• React: []
• Both: []

Checklist

• Can you replicate the issue on our v5 demo site https://demo.invoiceninja.com or https://react.invoicing.co/demo?
• Have you searched existing issues? Yepp
• Have you reported this to Slack/forum before posting? Yepp, but some time ago, but I didn't know the cause.
• Have you inspected the logs in storage/logs/laravel.log for any errors? Nope

Describe the bug

Expenses or returning expenses will be tagged as paid even if the switch is off.

Steps To Reproduce

Create an expense (or a recurring one) and "accidentely" switch it to paid AND select one of the payment-type (!!!). Now switch it off again without (!) deleting the payment-method before!

Expected Behavior

When the switch "mark paid" is off the tag should not be "paid" but "logged", no matter if there's a payment-type (pre-) selected or not.

Thanks!