CDP autocomplete for post feeds needs more identifying info than post id

[sc0ttius]

File: yali-theme/includes/content_block_metaboxes/post-list.php

When you save a list of specific posts, it only saves the id ([prefix]_cdp_autocomplete) in the post meta. If there are conflicting ids in multiple indices, it will list both items despite only wanting one. An additional piece of identifying information may be necessary to isolate individual items with multiple indices being searched.