Fix dev seed specs

db/dev_seeds/notifications.rb

@@ -3,7 +3,7 @@ section "Creating comment notifications" do
     debate = Debate.create!(author: user,
                             title: Faker::Lorem.sentence(3).truncate(60),
                             description: "<p>#{Faker::Lorem.paragraphs.join('</p><p>')}</p>",
-                            tag_list: Tag.all.sample(3).join(','),
+                            tag_list: ActsAsTaggableOn::Tag.all.sample(3).join(','),
                             geozone: Geozone.reorder("RANDOM()").first,
                             terms_of_service: "1")
 

db/schema.rb

@@ -12,6 +12,7 @@
 # It's strongly recommended that you check this file into your version control system.
 
 ActiveRecord::Schema.define(version: 20180320104823) do
+
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
   enable_extension "unaccent"