How to reproduce:

• Content type A
  • Attribute a1 type content with contentType B
  • View main
  • A view (main or another) a a1 joined on an attribute of B (b1)
• Content type A'
  • extends A
  • Attribute a2
  • does not override the main view
• Content type B
  • Attribute b1 type content with contentType A'
  • A view (main or another) a b1 joined on a2

If the type A is started before the type B, ametys cannot start because of circular dependencies => KO