The name of the subwiki isn't displayed anymore in the Notifications list

Steps to reproduce:

1. Login as Admin
2. Create a subwiki
3. Login as U1
4. Go to Notifications > Settings
5. Set all Pages Notifications to ON
6. Go to the subwiki created previously
7. Go to a page (e.g. Sandbox.TestPage1)
8. Click on Notifications bell and keep ON only the toggle 'Watch this page'
9. Login as Admin
10. Update/comment the respective page
11. On Main Wiki, login as U1
12. Observe the notifications list

Expected results: On the notifications list the name of the subwiki is displayed near the link to the event related page.

Actual results: The name of the subwiki doesn't appear anymore on 12.2 and 12.3 .

It is working good on 12.1

Also working on 11.10.5