CC-5696: Two shows or even three shows playing at once. Unstopable even after reboot

The problem was that we weren't updating the first show's start time if deleting
a repeat show day changes it. This affected the difference between the original
show start time and the new one.

airtime_mvc/application/models/airtime/CcShow.php

@@ -47,6 +47,9 @@ class CcShow extends BaseCcShow {
      */
     public function getFirstCcShowDay($criteria = null, PropelPDO $con = null)
     {
+        CcShowPeer::clearInstancePool();
+        CcShowPeer::clearRelatedInstancePool();
+
         if(null === $this->collCcShowDayss || null !== $criteria) {
             if ($this->isNew() && null === $this->collCcShowDayss) {
                 // return empty collection