Users don't have access to annotations, attachments and comments from subwikis on the main wiki Activity Stream

Steps to reproduce:

1. Login with Admin
2. Create a new subwiki
3. Create 2 new pages: one on the main wiki and one on the subwiki
4. Edit, annotate, comment and add an attachment to both pages

For the subwiki page you only see the link for the changes when you edit the page and the attachment name on the main wiki AS. You don't have access to the attachment and both comments and annotations aren't visible. If you go to the subwiki AS the comments, annotations and attachment link are visible.