While doing backup of my library via API I found many manga where title/alt.titles have duplicate entries. I filtered them out in JSON file with id of manga and duplicate title entry. Also created HTML file with links to manga and duplicate title entry below.
HTML file
https://drive.google.com/file/d/1vfKqWPvwaGirVt-FTpyjfbz2O-YdjfRE/view?usp=drive_link
JSON file
https://drive.google.com/file/d/1VKhXNzPIzU3ebta4EZOHbnhSE8FGiu0m/view?usp=drive_link
HTML file
https://drive.google.com/file/d/1vfKqWPvwaGirVt-FTpyjfbz2O-YdjfRE/view?usp=drive_link
JSON file
https://drive.google.com/file/d/1VKhXNzPIzU3ebta4EZOHbnhSE8FGiu0m/view?usp=drive_link