Author's vote

I would like to show the author's vote on its node in a views list.

There is a node type on which every user can vote as well as its author. The "views" listing node titles with each node's "average vote" and "the current user's vote". I would like to also add "the vote of author of the node" if it exists, otherwise empty or 0.

1. I added relationship "Content:Author" as "author"
2. I added relationship "Content:Votes" (nodes are dublicated)

I cannot restrict votes to those cast by the author. (And I dont want to substract nodes that dont have author's vote.)