unambigousify community spotlight query in the multi stream, fix #3196

lib/evil_query.rb

@@ -69,7 +69,7 @@ module EvilQuery
     end
 
     def community_spotlight_posts!
-      Post.all_public.where(:author_id => fetch_ids!(Person.community_spotlight, 'id'))
+      Post.all_public.where(:author_id => fetch_ids!(Person.community_spotlight, 'people.id'))
     end
 
     def ids!(query)

spec/lib/evil_query_spec.rb

@@ -1,5 +1,14 @@
 require 'spec_helper'
 
+describe EvilQuery::MultiStream do
+  let(:evil_query) { EvilQuery::MultiStream.new(alice, 'created_at', Time.now-1.week, true) }
+  describe 'community_spotlight_posts!' do
+    it 'does not raise an error' do
+      expect { evil_query.community_spotlight_posts! }.to_not raise_error
+    end
+  end
+end
+
 describe EvilQuery::Participation do
   before do
     @status_message = Factory(:status_message, :author => bob.person)