Merge branch 'justin_ho-fix-missing-label-filter-param-in-issuable-list-apps' into 'master'

Fix labelFilterParam value in issuable_list_root

See merge request gitlab-org/gitlab!65949

app/assets/javascripts/issuable_list/components/issuable_list_root.vue

@@ -134,7 +134,7 @@ export default {
     labelFilterParam: {
       type: String,
       required: false,
-      default: null,
+      default: undefined,
     },
     isManualOrdering: {
       type: Boolean,

ee/spec/features/projects/quality/test_case_list_spec.rb

@@ -76,6 +76,7 @@ RSpec.describe 'Test Cases', :js do
         page.within('.issuable-list-container .issuable-list li.issue', match: :first) do
           expect(page.find('.issue-title')).to have_content(test_case1.title)
           expect(page.find('.issuable-reference')).to have_content("##{test_case1.iid}")
+          expect(page.find('.issuable-info')).to have_link(label.title, href: "?label_name[]=#{label.title}")
           expect(page.find('.issuable-authored')).to have_content('created 5 days ago by')
           expect(page.find('.author')).to have_content(user.name)
           expect(page.find('div.issuable-updated-at')).to have_content('updated 2 days ago')