scribu/wp-posts-to-posts — pull request #218 by dancameron (2012-08-20 16:32:56+00:00)
Title: Fixes #217

Check to make sure get_current_screen doesn't simply return null before
objectifying it.

"Notice: Trying to get property of non-object in
/.../wordpress/wp-content/plugins/posts-to-posts/core/url-query.php on
line 27"