Assign vandalism reports for users to moderators

test/factories/issues.rb

@@ -3,5 +3,8 @@ FactoryBot.define do
     # Default to reporting users
     association :reportable, :factory => :user
     association :reported_user, :factory => :user
+
+    # Default to assigning to an administrator
+    assigned_role "administrator"
   end
 end