laravel/framework — pull request #352 by conradkleinespel (2013-02-17 20:24:37+00:00)
Title: [Bug] Http\Request::has($key) does not return TRUE for empty values

This line is problematic.

I wanna be able to append `?debug` to any URL, in my dev environment to enable debugging tools and features (like form novalidate).

But `Input::has` returns false for empty values, which is not correct.