Merge branch 'bug_fix/220_published_dataset_view_error' into 'develop'

Fix for error when public users view published datasets

Closes antleaf-projectmanagement#220

See merge request FDM/rdm-system/rdms!201

hyrax/app/views/hyrax/crc_datasets/show.html.erb

@@ -4,7 +4,7 @@
     <div class="row work-type">
       <div class="card">
         <div class="card-body">
-          <% if current_user.workflow_action_permission?(presenter) %>
+          <% if current_user && current_user.workflow_action_permission?(presenter) %>
             <%= render 'workflow_actions_widget', presenter: presenter %>
           <% end %>
           <%= render 'title', presenter: presenter %>