Fix feed source filter for Mongoid 8: pluck on localized channel_title returns the current-locale string

app/controllers/admin/feeds_controller.rb

@@ -105,8 +105,8 @@ class Admin::FeedsController < OrbitAdminController
 	def announcements
 		@filter_fields = {}
 		@filter_fields['feed.source'] = SiteFeed.all.pluck(:channel_title,:remote_site_url).collect do |a,b|
-			tp = (a.blank? || a[I18n.locale].blank?) ? b.gsub(/http:\/\/|https:\/\//,'').gsub(/\./,'-') : a[I18n.locale]
-			tp
+			tp = a.blank? ? b.gsub(/http:\/\/|https:\/\//,'').gsub(/\./,'-') : a 
+                        tp
 		end.uniq.map{|tp| {:title => tp,:id => tp}}
 		@filter_fields['feed.module_name'] = SiteFeed.all.map{|s| s.channel_key}.uniq.map do |key|
 			{:title => I18n.t("module_name.#{key}"),:id => key}