Currently, when there are more than 5 (default limit for content versions) drafts, content becomes inaccessible. Increasing that value resolves the situation, however, the drafts pop-up should be scrollable.

Steps to reproduce:
1. Create new content.
2. Create more than 5 drafts of this content.
3. Try to access this content from the Back Office.

Result:
The user is presented with the example error:

Key "10" in object with ArrayAccess of class "Symfony\Component\Form\FormView" does not exist.