CiviDiscount, Discounts for events, the option "Any event" does not work

Created by: agileware-justin

Using CiviCRM 5.40.1, CiviDiscount 3.8.4 and WordPress 5.8.

Steps to reproduce

1. Create a Discount Code
2. Set a discount amount
3. In the section "Discounts for events", select Events: "-- any event ---"
4. Go to an Event Registration form, try locate the Discount Code field on the form.
5. The Discount Code field is not shown on the form.

Discounts for events with the option "-- any event ---" does not work.

Workaround The workaround is to select all the available Event Types, then the discount is available for all events and it can be applied.

Agileware Ref: CIVICRM-1774