Single post search broken

[templeman]

When 'multiple-item' => true, the search works as advertised. However, when 'multiple-item' => false (which is the default) the search fails. Specifically, a result set is returned, but selecting an option just reveals its post ID and nothing gets saved (see gif).

I can confirm that applying the patches in #17 - specifically commit 9761686 - fixes this, so hopefully that can get merged in soon.