Bug - When preview fetching was removed from the conatinerVC, the unobservation of the article was also removed.
Bug - When preview fetching was removed from the conatinerVC, the unobservation of the article was also removed.

This needs to happen to prevent from being notified twice when fetching an article.

wikimedia/apps-ios-wikipedia,montehurd/apps-ios-wikipedia,bgerstle/wikipedia-ios,anirudh24seven/wikipedia-ios,wikimedia/wikipedia-ios,josve05a/wikipedia-ios,josve05a/wikipedia-ios,josve05a/wikipedia-ios,montehurd/apps-ios-wikipedia,josve05a/wikipedia-ios,julienbodet/wikipedia-ios,wikimedia/apps-ios-wikipedia,bgerstle/wikipedia-ios,wikimedia/apps-ios-wikipedia,wikimedia/wikipedia-ios,anirudh24seven/wikipedia-ios,bgerstle/wikipedia-ios,anirudh24seven/wikipedia-ios,julienbodet/wikipedia-ios,anirudh24seven/wikipedia-ios,julienbodet/wikipedia-ios,josve05a/wikipedia-ios,montehurd/apps-ios-wikipedia,anirudh24seven/wikipedia-ios,julienbodet/wikipedia-ios,wikimedia/apps-ios-wikipedia,bgerstle/wikipedia-ios,anirudh24seven/wikipedia-ios,josve05a/wikipedia-ios,josve05a/wikipedia-ios,wikimedia/apps-ios-wikipedia,montehurd/apps-ios-wikipedia,montehurd/apps-ios-wikipedia,wikimedia/wikipedia-ios,wikimedia/apps-ios-wikipedia,anirudh24seven/wikipedia-ios,montehurd/apps-ios-wikipedia,julienbodet/wikipedia-ios,bgerstle/wikipedia-ios,wikimedia/wikipedia-ios,bgerstle/wikipedia-ios,wikimedia/apps-ios-wikipedia,wikimedia/wikipedia-ios,montehurd/apps-ios-wikipedia,bgerstle/wikipedia-ios,josve05a/wikipedia-ios,julienbodet/wikipedia-ios,bgerstle/wikipedia-ios,julienbodet/wikipedia-ios,wikimedia/wikipedia-ios,anirudh24seven/wikipedia-ios,wikimedia/apps-ios-wikipedia,montehurd/apps-ios-wikipedia,wikimedia/wikipedia-ios,julienbodet/wikipedia-ios