:recycle: adding short to short p2p

plugins/cia-post-types/includes/p2p-mappings.php

 
 function register_all_one_offs() {
     register_connections_for('artist', ['artist']);
-    register_connections_for('short', ['technique']);
+    register_connections_for('short', ['technique', 'short']);
     register_connections_for('guide', ['episode']);
     register_connections_for('event', ['event']);
 }