Last month, the horror anthology Night & Day was published. Before release, it had placeholder art where there was no ISBN/barcode box included on the cover art. Closer to the release date, its art was changed to art that included a box for the ISBN and barcode. I asked for librarian assistance in changing the cover art because it was incomplete pre-publication art, but rather than doing that, a librarian incorrectly created an entirely new ACE. As such, they need to be merged to rectify the issue.
Editions:
https://www.goodreads.com/book/show/2...
https://www.goodreads.com/book/show/2...
Evidence of the cover art change:
https://www.simonandschuster.com/book... - Current cover art, book has a box for the ISBN on the blue side
https://web.archive.org/web/202501282... - Archived version of the site with art that was only in use before publication and changed before it was released.