Description of problem:
Version-Release number of selected component (if applicable):
v3.8.10-1 on devel server
Steps to Reproduce:
1.create a product named "tzhao test product",which has three builds and three versions
2.create three plans ,only one plan has tag,the other two have no tags
3.enter into the testing report ,choose this product and generate report by Plan's Tag and check whether the "Untagged" tag display in the page.
report page is:https://tcms-devel.app.eng.nay.redhat.com/report/testing/?r_product=344&r_created_since=&r_created_before=&report_type=runs_with_rates_per_plan_tag
step 3:there is no "Untagged" tag showing in the page.
But if you generate report by By Plan's Tag Per Tag View,you can see the "Untagged" tag display in the page.
after step 3: the untagged should display in the page as there are two plans having no tags.
No passed or failed case runs are associated with those untagged plans. So, those plans do not appear in the statistics data set.