[Reservations] Room details page does not show reservations in Bookings section

[maieutiquer]

Q	A
Bug report?	yes
Version?	13.0.40

Steps:

1. Install Claroline from scratch
2. Create a Location and a Room for it
3. Create a Training
4. Create a Session and add your Location to it

5. Create a Session Event and add the Location and the Room to it

6. Open the Room details and expand the Bookings section

Expected: the Session Event should appear in that section
Actual: the section is empty with a No Results message, even after page refresh with F5:

This issue is blocking our client from using a custom calendar as their Session Events are not coming up in Claroline's service response