Merge branch 'qa/rs-filter-by-name-subgroup' into 'master'

Filter by subgroup name before determining if our group has a subgroup

See merge request gitlab-org/gitlab-ce!15969

qa/qa/page/group/show.rb

@@ -6,7 +6,13 @@ module QA
           click_link name
         end
 
+        def filter_by_name(name)
+          fill_in 'Filter by name...', with: name
+        end
+
         def has_subgroup?(name)
+          filter_by_name(name)
+
           page.has_link?(name)
         end