Revision changes are not properly displayed on Notifications RSS Feed if a page is deleted

STEPS TO REPRODUCE

1. Login with Admin
2. Create an user (e.g. U1)
3. Login with U1
4. Go to Notification Settings and set all Pages to ON
5. Login with Admin
6. Create, update, comment and delete a page (e.g. Pag1)
7. Login with U1
8. Click on Notifications bell > 'RSS Feed' and observe the 'Changes' links
9. Login as Admin
10. Restore the page 'Pag1'
11. Login with U1
12. Click on Notifications bell > 'RSS Feed'

EXPECTED RESULTS

On RSS feed are displayed properly the events performed by Admin (create/update/comment/delete a page) along with the corresponding links to respective document changes. If the page is deleted, no revision link is displayed for this respective (delete) event (eventually displayed '-').

ACTUAL RESULTS

On 'Changes:' is displayed '${newdoc.version}' value instead of the version (revision) link for the update, comment and delete events.

If the 'Pag1' page is restored, the comment event's title is changed into a creation event (screenshot attached).

The issues could be reproduced also on XWiki 11.0.3.