Fixed issue sorting specs for ID changes

These specs assumed data was still sorted by timestamp, instead of by
ID.

spec/features/issues_spec.rb

@@ -127,15 +127,15 @@ describe 'Issues', feature: true do
     it 'sorts by newest' do
       visit namespace_project_issues_path(project.namespace, project, sort: sort_value_recently_created)
 
-      expect(first_issue).to include('foo')
-      expect(last_issue).to include('baz')
+      expect(first_issue).to include('baz')
+      expect(last_issue).to include('foo')
     end
 
     it 'sorts by oldest' do
       visit namespace_project_issues_path(project.namespace, project, sort: sort_value_oldest_created)
 
-      expect(first_issue).to include('baz')
-      expect(last_issue).to include('foo')
+      expect(first_issue).to include('foo')
+      expect(last_issue).to include('baz')
     end
 
     it 'sorts by most recently updated' do
@@ -190,8 +190,8 @@ describe 'Issues', feature: true do
                                             sort: sort_value_oldest_created,
                                             assignee_id: user2.id)
 
-        expect(first_issue).to include('bar')
-        expect(last_issue).to include('foo')
+        expect(first_issue).to include('foo')
+        expect(last_issue).to include('bar')
         expect(page).not_to have_content 'baz'
       end
     end