Fix RSPEC test for graphQL project boards

Update tests for GraphQL boards on projects

ee/spec/features/boards/swimlanes/epics_swimlanes_spec.rb

@@ -10,6 +10,7 @@ RSpec.describe 'epics swimlanes', :js do
   let_it_be(:board) { create(:board, project: project) }
   let_it_be(:label) { create(:label, project: project, name: 'Label1') }
   let_it_be(:list) { create(:list, board: board, label: label, position: 0) }
+  let_it_be(:backlog_list) { create(:backlog_list, board: board) }
 
   let_it_be(:issue1) { create(:issue, project: project, labels: [label]) }
   let_it_be(:issue2) { create(:issue, project: project) }

ee/spec/features/issues/filtered_search/filter_issues_by_iteration_spec.rb

@@ -81,6 +81,8 @@ RSpec.describe 'Filter issues by iteration', :js do
         before do
           # iterationWildCardId is not yet supported by graphQL https://gitlab.com/gitlab-org/gitlab/-/issues/300115
           stub_feature_flags(graphql_board_lists: false)
+          
+          visit page_path
 
           page.within('.filtered-search-wrapper') do
             find('.filtered-search').set('iter')
@@ -140,6 +142,7 @@ RSpec.describe 'Filter issues by iteration', :js do
 
   context 'project board' do
     let_it_be(:board) { create(:board, project: project) }
+    let_it_be(:backlog_list) { create(:backlog_list, board: board) }
 
     let(:page_path) { project_board_path(project, board) }
     let(:issue_title_selector) { '.board-card .board-card-title' }
@@ -157,6 +160,7 @@ RSpec.describe 'Filter issues by iteration', :js do
 
   context 'group board' do
     let_it_be(:board) { create(:board, group: group) }
+    let_it_be(:backlog_list) { create(:backlog_list, board: board) }
     let_it_be(:user) { create(:user) }
 
     let(:page_path) { group_board_path(group, board) }

spec/features/boards/modal_filter_spec.rb

@@ -12,6 +12,8 @@ RSpec.describe 'Issue Boards add issue modal filtering', :js do
   let!(:issue1) { create(:issue, project: project) }
 
   before do
+    stub_feature_flags(graphql_board_lists: false)
+    stub_feature_flags(add_issues_button: true)
     project.add_maintainer(user)
 
     sign_in(user)