* fixing boolean values, casting them to bool when reading from the database

lib/Doctrine/Record/Filter.php

@@ -150,6 +150,9 @@ class Doctrine_Record_Filter extends Doctrine_Object
                     case 'enum':
                         $data[$name] = $this->_record->getTable()->enumValue($name, $tmp[$name]);
                         break;
+                    case 'boolean':
+                        $data[$name] = (boolean)$tmp[$name];
+                        break;
                     default:
                         $data[$name] = $tmp[$name];
                 }