Prevent duplicated matches in bulk migration

CHANGELOG.md

@@ -22,6 +22,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 - (**Migration**) Fix retry button never being shown for failed search/migration entries
 - (**Migration**) Fix showing an empty "Available" source group header when all sources are selected
 - (**Migration**) Fix showing no info message when no sources are available to select as destinations
+- (**Migration**) Fix duplicated search matches after resuming the migration search
 - (**Reader**) Fix scrollbar appearing with "fit to widt/height/screen" page scale mode and applied safe area insets
 - (**Reader**) Fix wrongly positioned mobile progress bar current page indicator
 - (**Reader**) Fix mobile progress bar previous/next chapter button visibility on hover and while disabled

src/features/migration/MigrationManager.ts

@@ -852,7 +852,10 @@ export class MigrationManager {
                                 ? draft.entries[draftEntry.selectedMatchMangaId]
                                 : null;
 
-                            const matches = foundMatches.map((manga) => ({
+                            const newMatches = foundMatches.filter((newMatch) =>
+                                draftEntry.searchMatches.every((existingMatch) => newMatch.id !== existingMatch.id),
+                            );
+                            const matches = newMatches.map((manga) => ({
                                 id: manga.id,
                                 title: manga.title,
                                 artist: manga.artist,