Multiple events have the same path

[steffenkleinle]

Describe the Bug

Due to multiple events using the same path, the search in the frontends is atm broken for the Ostallgäu: https://integreat.app/ostallgaeu/de/search

We rely on the path/url of all pages (categories, events, pois, ...) to be unique to be able to use them as IDs. This assertion seems to be broken, but should be enforced in the CMS.

Steps to Reproduce

1. Request https://cms.integreat-app.de/api/v3/ostallgaeu/de/events/?combine_recurring=True
2. See two items with path: /ostallgaeu/de/events/handarbeits-werkstatt-mit-begegnung-und-austausch-5

Expected Behavior

No events/categories/pois to have the same id.

Actual Behavior

Two events have the same id.

Additional Information

App issue: digitalfabrik/integreat-app#2928
Mattermost discussion: https://chat.tuerantuer.org/digitalfabrik/pl/53jp75ehfj8mbdtwh3u56xhrua