Fix pri toggle conditional

app/views/shared/_label.html.haml

@@ -11,7 +11,7 @@
     %li.inline
       .label-badge.label-badge-gray= label.model_name.human.capitalize
     - if can?(current_user, :admin_label, label)
-      - if subject.is_a?(Project)
+      - if @project.present?
         %li.inline.js-toggle-priority{ data: { url: remove_priority_project_label_path(@project, label),
           dom_id: dom_id(label), type: label.type } }
           %button.label-action.add-priority.btn.btn-transparent.has-tooltip{ title: 'Prioritize', type: 'button', :'data-placement' => 'top' }