@Etonkovidova brought this up.
We want all pages in the New Pages Feed to be checked for copyvio, including the several thousand pages that are already in there. This is similar to how we wanted all pages to have ORES scores applied: T198982
Therefore, this task is for backfilling copyvio checking on the pages in feed using the same business rules we will use on new pages: if any of their revisions have copyvio flags, the page has it. Hopefully, the CopyPatrol database will allow this to happen easily.