Make sure there is only one participant with a specific cname in a conference
Make sure there is only one participant with a specific cname in a conference

ahmedammar/skype_farsight2,pexip/farstream,ahmedammar/skype_farsight2,shadeslayer/farstream,tieto/farstream,ahmedammar/skype_farsight2,pexip/farstream,tieto/farstream,shadeslayer/farstream,kakaroto/farstream,tieto/farstream,pexip/farstream,kakaroto/farstream,tieto/farstream,shadeslayer/farstream,pexip/farstream,ahmedammar/skype_farsight2,tieto/farstream,shadeslayer/farstream,kakaroto/farstream,kakaroto/farstream