Render service extras partial conditionally

app/views/projects/services/_form.html.haml

@@ -18,3 +18,7 @@
 
           = link_to 'Test settings', test_namespace_project_service_path(@project.namespace, @project, @service), class: "btn #{disabled_class}", title: disabled_title
         = link_to "Cancel", namespace_project_settings_integrations_path(@project.namespace, @project), class: "btn btn-cancel"
+
+- if lookup_context.template_exists?('show', "projects/services/#{@service.to_param}", true)
+  %hr
+  = render "projects/services/#{@service.to_param}/show"
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