sorting prose - 3.3

3.3 Sorting reads in part:

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For the Object Search Endpoint, objects MUST be sorted in ascending order by the date the object first appeared in object search (i.e., the added date). If an object would appear multiple times (for instance, a single object was added to different Collections at different times), subsequent appearances of that object MUST be omitted from the result.
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I'm not a big fan of examples but here is a situation where it could be useful.

I'm struggling with "first appeared in object search (i.e., the added date)" Do you mean to take the object search result, in added date order, start at the oldest object and proceed to the end? Or do you mean to start with the most recent object date and proceed to the start of the list?

Or perhaps better, does subsequent mean after the the first appearance of an object, starting with the most recent object and moving backwards in time. Any "subsequent" appearance in that order is ignored. Yes?