[Tranga broke]: Missing Chapters if multiple Chapters have the same Number #543
Description
What is broken?
Some titels like Mage & Demon Queen or Yuri Anthology Dolce (Anthology) have missing chapters. The affected mangas have chapter numbers that reset for each volume and the missing chapters all have numbers that are also used in a different volume. Meaning, all chapter numbers only show up once despite being present in multiple volumes.
Based on the logs, it seems the connector does find the missing chapters, but they get removed in RetrieveMangaChaptersFromMangaconnectorWorker when the duplicate keys get removed.
I think the problem is that the volume number is not part of the key for Chapters.
Log-output
2026-01-21 17:31:26,192 [30] DEBUG API.Schema.MangaContext.MangaContext - Syncing 0 changes MangaContext Chapter CheckDownloaded Chapter-ed56a74dc034cd1ef57efe0386bc786c Vol.11 Ch.54 - True...
2026-01-21 17:31:26,192 [22] INFO MangaDex - Request for chapters for Yuri Anthology Dolce (Anthology) yielded 13 results.
2026-01-21 17:31:26,193 [22] DEBUG API.Workers.MangaDownloadWorkers.RetrieveMangaChaptersFromMangaconnectorWorker - Got 7 chapters from connector.
2026-01-21 17:31:26,193 [22] DEBUG API.Workers.MangaDownloadWorkers.RetrieveMangaChaptersFromMangaconnectorWorker - Got 0 new chapters.
2026-01-21 17:31:26,194 [22] DEBUG API.Workers.MangaDownloadWorkers.RetrieveMangaChaptersFromMangaconnectorWorker - Got 0 new download-Ids.Tranga version
Additional stuff
No response