app/code/community/Nexcessnet/Turpentine/Block/Core/Messages.php
public function addMessage(Mage_Core_Model_Message_Abstract $message) {
        if ($this->_fixMessages()) {
            $this->_saveMessages(array($message));
        } else {
            parent::addMessage($message);
        }
        return $this;
    }
public function addMessage(Mage_Core_Model_Message_Abstract $message) {
        if ($this->_fixMessages()) {
            $this->_saveMessages(array($message));
        } else {
            parent::addMessage($message);
        }
        return $this;
    }
public function addMessage ( Mage_Core_Model_Message_Abstract $ message ) { if ( $ this -> _fixMessages ( ) ) { $ this -> _saveMessages ( array ( $ message ) ) ; } else { parent :: addMessage ( $ message ) ; } return $ this ; }
Adding new message to message collection

@param   Mage_Core_Model_Message_Abstract $message
@return  Mage_Core_Block_Messages
Adding new message to message collection