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 ## Features
 The app tries to fix the following issues in the database
 - Correction of wrong firstauthor entries (books_impl table)
+- Correction of wrong first_author_letter entries (books_impl table)
 - Correction of wrong author entries (books_impl table)
 - Removing deleted e-books from the database (various tables)
 - Add missing genre if present in epub (genre and booktogenre tables)