attempt to fix spec by using more standard methods

spec/features/work_packages/details/inplace_editor/version_editor_spec.rb

@@ -29,22 +29,23 @@ describe 'subject inplace editor', js: true, selenium: true do
   }
 
   let(:property_name) { :version }
-  let!(:work_package) { FactoryGirl.create :work_package, project: project }
+  let(:work_package) { FactoryGirl.create :work_package, project: project }
   let(:user) { FactoryGirl.create :admin }
-  let(:work_packages_page) { WorkPackagesPage.new(project) }
-  let(:field) { WorkPackageField.new page, property_name }
+  let(:work_package_page) { Pages::FullWorkPackage.new(work_package) }
 
   before do
     login_as(user)
-    work_packages_page.visit_index(work_package)
-    within '.panel-toggler' do
-      find('a', text: 'Show all attributes').click
-    end
-    field.activate_edition
-
   end
 
   it 'renders hierarchical versions' do
+    work_package_page.visit!
+    work_package_page.view_all_attributes
+    work_package_page.ensure_page_loaded
+
+    field = work_package_page.work_package_field(:version)
+
+    field.activate_edition
+
     expect(page).to have_selector("#{field.field_selector} select")
 
     options = page.all("#{field.field_selector} select option")