Merge branch 'ee-fix-flakey-move-slash-command-unauthorized-project' into 'master'

Fix flakey time-sensitive move slash command with unauthorized project -- EE merge edition

See merge request gitlab-org/gitlab-ee!6124

spec/features/issues/user_uses_slash_commands_spec.rb

@@ -300,7 +300,9 @@ feature 'Issues > User uses quick actions', :js do
         it 'does not move the issue' do
           add_note("/move #{project_unauthorized.full_path}")
 
-          expect(page).not_to have_content 'Commands applied'
+          wait_for_requests
+
+          expect(page).to have_content 'Commands applied'
           expect(issue.reload).to be_open
         end
       end