Set group context for FilteredSearchManager

app/assets/javascripts/boards/filtered_search_boards.js

@@ -7,6 +7,7 @@ export default class FilteredSearchBoards extends FilteredSearchManager {
   constructor(store, updateUrl = false, cantEdit = []) {
     super({
       page: 'boards',
+      isGroup: true,
       filteredSearchTokenKeys: FilteredSearchTokenKeysIssues,
       stateFiltersSelector: '.issues-state-filters',
     });

ee/app/assets/javascripts/pages/groups/epics/index/index.js

@@ -5,6 +5,9 @@ import initNewEpic from 'ee/epics/new_epic/new_epic_bundle';
 document.addEventListener('DOMContentLoaded', () => {
   initFilteredSearch({
     page: 'epics',
+    isGroup: true,
+    isGroupAncestor: true,
+    isGroupDecendent: true,
     filteredSearchTokenKeys: FilteredSearchTokenKeysEpics,
     stateFiltersSelector: '.epics-state-filters',
   });