Merge branch 'ee-10083-dropdown-ce-ee-difference' into 'master'

Ports 10083-dropdown-ce-ee-difference

See merge request gitlab-org/gitlab-ee!10992

changelogs/unreleased/10083-dropdown-ce-ee-difference.yml

+---
+title: Moved EE/CE differences for dropdown_value_collapsed into CE
+merge_request: 27367
+author:
+type: other

spec/javascripts/vue_shared/components/sidebar/labels_select/dropdown_value_collapsed_spec.js

@@ -27,7 +27,7 @@ describe('DropdownValueCollapsedComponent', () => {
 
   describe('computed', () => {
     describe('labelsList', () => {
-      it('returns empty text when `labels` prop is empty array', () => {
+      it('returns default text when `labels` prop is empty array', () => {
         const vmEmptyLabels = createComponent([]);
 
         expect(vmEmptyLabels.labelsList).toBe('Labels');