Steps to Reproduce:
- Log in as admin user.
- Add a new site and a page.
- Create a new user and assign the user to the site.
- Go to the site >Publishing > Staging, enable Local Staging, and check Wiki under Staged Content.
- Add a Wiki portlet and edit the FrontPage.
- Publish to Live.
- Log out then log back in as the created user.
- Go to the staging site.
The site member should be able to add comment to the Wiki.