SEASON_PACK_RE only matched an explicit parenthesized "(S01 Complete)"
form, so any other real-world season-pack naming convention — bare
"S10.COMPLETE", spelled-out "Season 8 Complete", "[Season 4 Four
Complete]", or no "Complete" marker at all ("Game of Thrones - Season 8
S08 - 2019") — came back with season = None entirely, not just an
unresolved episode. That fed straight into review-queue approvals
returning "could not resolve which episode this release is" for releases
that were genuine, resolvable season packs. Broadened to a bare season
marker, safe here since this is only reached after SXXEXX_RE/SXX_DASH_EP_RE
have already failed to find a real episode number.
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