anchor.diff:          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 && this_proposal_cluster.proposals.length > 1
  +          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
  +            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
  
positive.code:                                   for other_proposal in this_proposal_cluster.proposals
                                      TR href: "/#{other_proposal.long_id}", onClick: clickInternalLink, key: "tr/#{other_proposal.long_id}",
                                        TD style: {textAlign: 'left', paddingLeft: 20},
                                          A href: "/#{other_proposal.long_id}", onClick: clickInternalLink, style: {fontWeight: if other_proposal.id == proposal.id then 700 else 400},
                                            other_proposal.name
                                          
                                        TD style: {position: 'relative'},
  
negative.code:     # If navigation bar is enabled, then we'll use a really short proposal name in the heading.
      # Otherwise we'll display the full question. This split doesn't come from
      # deep thought. Right now we'll just show the nav bar if the proposal belongs to a group
      use_navigation_bar = @proposal.cluster && proposals
      
      DIV null, 
        if use_navigation_bar
  