In some books popular shelves, you may see a duplicate shelf name, like in "War and Peace" book you would see two "to-read" shelves.
https://www.goodreads.com/book/show/656
In this case, the program will throw exception and stops. I merge these same shelves into one.
In some books popular shelves, you may see a duplicate shelf name, like in "War and Peace" book you would see two "to-read" shelves. https://www.goodreads.com/book/show/656
In this case, the program will throw exception and stops. I merge these same shelves into one.