The issue only occured in upgrading from 6.1 to 6.2.
1. Start 6.1.10
2. Create Site, and add in Members
3. Add Activites Portlet from Social Networking plugin to a page.
4. Login as a member and add a document.
Result: Activities portlet will show that a user has uploaded a document with the name of the document
"Test Test uploaded a new document, Test Document.txt"
"Test Document.txt" is a link to the file.
5. Upgrade to 6.2(Master)
6. View Activities portlet.
Expected Result: Should be same as before.
Customer's test result: "Test Test uploaded a new document"
There is no link to the document that was uploaded previously.