Bug? Generated URL shows PHP code

<%- if @topic_view.topic.tags.present? %>
<%= t 'js.tagging.tags' %>: <%- @topic_view.topic.tags.each do |t| %> <%= t %> <%- end %>
<% end %>

Trying to get from a graph in the “mini” views to the interface or sensor. But the link is broken, as it shows the php code to generate the link.

Update to 1.56 solved the issue.