<% unless relation.containing_relation_members.empty? %>
<h4><%= t'browse.part_of' %></h4>
- <ul><%= render :partial => "containing_relation", :collection => relation.containing_relation_members %></ul>
+ <ul><%= render :partial => "containing_relation", :collection => relation.containing_relation_members.uniq %></ul>
<% end %>
</div>
<% end %>