In https://github.com/WPMedia/feed-components/blob/develop/blocks/feeds-source-collections-block/sources/collections.js the Content API /content/v4/collections is used to pull a Collection by ID. Then for each element in the collection, it fetches the full content using the /content/v4/ids endpoint but replaces the collection items (which had the overrides) with the full story objects from the IDs endpoint which do not contain the overrides.
In
https://github.com/WPMedia/feed-components/blob/develop/blocks/feeds-source-collections-block/sources/collections.jsthe Content API/content/v4/collectionsis used to pull a Collection by ID. Then for each element in the collection, it fetches the full content using the/content/v4/idsendpoint but replaces the collection items (which had the overrides) with the full story objects from the IDs endpoint which do not contain the overrides.