nl_tokens: Removes duplicate collaborators .
pl_tokens: function deduplicateCollaborators ( collaborators ) { var foundLogins = [ ] ; return _ . <mask> ( collaborators , function ( collaborator ) { var duplicate = false , login = collaborator . login ; if ( foundLogins . indexOf ( login ) > - 1 ) { duplicate = true ; } else { foundLogins . push ( login ) ; } return ! duplicate ; } ) ; }