Lithium Router skip persistent parameters

gistfile1.php

	protected static function _prepareParams($url, $context, array $options) {
		if (is_string($url)) {
			if (strpos($url, '://')) {
				return $url;
			}
			foreach (array('#', '//', 'mailto') as $prefix) {
				if (strpos($url, $prefix) === 0) {
					return $url;
				}
			}
			if (is_string($url = static::_parseString($url, $context))) {
				return static::_prefix($url, $context, $options);
			}
		}
		if (isset($url[0]) && is_array($params = static::_parseString($url[0], $context))) {
			unset($url[0]);
			$url = $params + $url;
		}
		if(isset($options['reset']) AND $options['reset'])
		{
			return static::_parseController($url);
		}
		return static::_persist(static::_parseController($url), $context);
	}