Add unique together on channels.Channel
Add unique together on channels.Channel

williamroot/opps,williamroot/opps,opps/opps,YACOWS/opps,williamroot/opps,YACOWS/opps,YACOWS/opps,opps/opps,jeanmask/opps,jeanmask/opps,jeanmask/opps,jeanmask/opps,YACOWS/opps,opps/opps,opps/opps,williamroot/opps