Description of problem:
Participants shown on the Translation Unit pane are not always real time participants.
Name of a person who checked statistics of the document in the past have been shown, even the person is not opening the page, or logged in.
It should only show the real time participants who are actually working on the translation at the time.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
*** This bug has been marked as a duplicate of bug 756292 ***