Quick Edit displays error message

[BevS]

When using quick edit to publish a custom post type that uses meta-box, the error message "Are you sure you want to do this?Please try again." is displayed. This is due to the nonce check failing in inc/classes/meta-box.php function "save_post". The check fails because the nonce is not created for inline edits. Not only that, but the fields in memory are not filled in, so the save_post function should not do anything on inline-saves.

The solution is to edit the test in save_post to look like the following:
// Check whether:
// - the post is autosaved
// - the post is a revision
// - current post type is supported
// - user has proper capability
// - the edit is not inline
if (
( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE )
|| ( ! isset( $_POST['post_ID'] ) || $post_id != $_POST['post_ID'] )
|| ( ! in_array( $post_type, $this->meta_box['pages'] ) )
|| ( ! current_user_can( $post_type_object->cap->edit_post, $post_id ) )
|| ( $_POST['action'] == 'inline-save' )
)
{
return $post_id;
}

This thread may explain better:
http://wordpress.org/support/topic/quick-edit-not-working-and-problem-located?replies=4#post-3768402