lucascosta/wp-posts-to-posts — comment on commit c0eb72883aa765b5660ad3067d18e4b9c3b482e7
File:  line 0
By lucascosta:

This makes each_connected populate and array with the name of the connection as key instead of throwing the data directly into $post_>connected. This is useful to make multiple connection types each. I think this was present in earlier versions....