zendframework/zf2 — pull request #3266 by katalonec (2012-12-20 18:19:59+00:00)
Title: 	modified:   library/Zend/Mvc/Router/Http/Wildcard.php

end($params) === '' condition deny urls with empty last value, e.g.
/key/value/key2/
but allow empty values in the middle
/key/value/key2//key3/value3...
maybe there some reason for that but don't get atm