anchor.diff:  
                             DIV className: 'other_clusters', 
                               for cluster in proposals.clusters
  -                              if proposal.cluster != cluster.name && cluster.proposals.length > 0
  +                              if @proposal.cluster != cluster.name && cluster.proposals.length > 0
                                   do (cluster) =>
                                     DIV className: 'another_cluster', style: {padding: '0 50px', width: '100%', position: 'relative'}, onMouseEnter: (=> @local.show_cluster = cluster.name; save(@local)), onMouseLeave: (=> @mouseLeaveOtherCluster(cluster.name) ),
                                       SPAN style: {float: 'left', fontSize: 18, fontWeight: 400},
  
positive.code:                 style: {position: 'absolute', display: 'inline-block', top: 10, left: 12},
                  I className: 'fa fa-home', style: {fontSize: 28, color: 'white'}
  
              DIV className: 'current_proposal_cluster', proposal.cluster
  
              DIV className: 'proposal_navigation_menu_wrapper', style: {width: DESCRIPTION_WIDTH}, # set the width here so we can align it perfectly with the proposal description text
                DIV style: {width: PAGE_WIDTH}, # ...but let the stuff inside be big
  
negative.code:         if proposals.clusters #don't want to error out if /proposals isn't loaded yet
  
            #extract the cluster this proposal belongs to
            this_proposal_cluster = _.findWhere proposals.clusters, {name: @proposal.cluster}
            has_other_proposals_in_cluster = this_proposal_cluster?.proposals.length > 1
  
            if !@local.next_proposal && has_other_proposals_in_cluster
              # the next proposal is the next proposal in the cluster, with 
              # preference for proposals the user has yet to submit an opinion for. 
  
              other_proposals_in_cluster = _.filter this_proposal_cluster.proposals, (prop) => prop.id != @proposal.id # remove this proposal from the list
              has_not_opined = _.filter other_proposals_in_cluster, (prop) => !prop.your_opinion || !@data(prop.your_opinion).published
  
              if has_not_opined.length > 0
  