kohana/database — pull request #73 by kwhat (2014-06-06 22:58:12+00:00)
Title: Passing NULL to argument 3 of mysql_fetch_object has undefined behavior ...

Passing NULL to argument 3 of mysql_fetch_object has undefined behavior and is not functionally equal to not passing a 3rd argument. This seems to effect php 5.3 but not php 5.5. A bug report was never created. This resolves issues like %S does not have a constructor hence you cannot use ctor_params.