VRFS-1665 prevent session creator from getting notified of sessions

ruby/lib/jam_ruby/models/email_batch_scheduled_sessions.rb

@@ -68,8 +68,12 @@ FROM scores
 INNER JOIN #{TMP_SESS} ON #{TMP_SESS}.creator_score_idx = scores.alocidispid
 INNER JOIN #{TMP_RECIP} ON #{TMP_RECIP}.receiver_score_idx = scores.blocidispid
 WHERE
-    scores.score < #{Score::MAX_YELLOW_LATENCY}
-GROUP BY #{TMP_RECIP}.receiver_id, #{TMP_SESS}.session_id, latency
+    scores.score < #{Score::MAX_YELLOW_LATENCY} AND
+    #{TMP_RECIP}.receiver_id != #{TMP_SESS}.creator_id
+GROUP BY 
+    #{TMP_RECIP}.receiver_id, 
+    #{TMP_SESS}.session_id, 
+    latency
 SQL
       ActiveRecord::Base.connection.execute(sql)
     end

ruby/spec/jam_ruby/models/email_batch_spec_scheduled_session.rb

@@ -95,7 +95,7 @@ describe EmailBatchScheduledSessions do
       expect(drummer.instruments.include?(drums)).to eq(true)
       expect(drummer.instruments.include?(guitar)).to eq(true)
       obj = scheduled_batch.fetch_recipients
-      expect(obj.count).to eq(3)
+      expect(obj.count).to eq(2)
     end
 
     it 'sends email' do