Reproduction

1. Create a book
2. Create 2 versions (v1, v2)
3. Create two libraries (libA, libB), each with at least on version (libA/BV1)
4. In the administration UI for libraries of the book, add each library
5. You will see something like this:

instead of:

Important note: the objects are well set in each version pages, it's just the display which have a problem

Solution

Default LiveData is for displaying pages, not different objects of the same class in the same page.

A custom result for the LiveData should be provided to display one object per line.

It would be best if the Library Version could be changed in place.