The Explore library lookup spent up to eight search-index queries per
server per tap, plus one children fetch per candidate for sequels, and the
Trakt path added two alias/translation requests per detail open to reach
romaji and localized library titles.
Both backends index originalTitle on every copy of a foreign title whatever
language it is filed under, so the lookup now leads with the native title
and drops alternate titles as candidates: one query reaches the English,
romaji, localized and native copies alike. Plex's /library/all?guid= filter
is a literal prefix match with comma as OR, so every legacy-agent guid form
the external ids imply rides one indexed request alongside the Discover
guid, and the sequel gate asks for the season of every candidate in one
/library/all?type=3&show.id=…&season.index=N request. Worst case is five
concurrent requests per server, typically two or three, with no cloud call.
The Trakt alias/translation fetch is removed: the copies it reached are the
ones the native title reaches, and Trakt already sends original_title.
close#2098
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