Merge branch '56860-fix-spec-race-condition-upside-the-head' into 'master'

Fix a JS race in a spec

Closes #56860

See merge request gitlab-org/gitlab-ce!24684

(cherry picked from commit b5e10cd3)

spec/features/projects/settings/user_changes_default_branch_spec.rb

@@ -15,6 +15,9 @@ describe 'Projects > Settings > User changes default branch' do
     let(:project) { create(:project, :repository, namespace: user.namespace) }
     it 'allows to change the default branch', :js do
+      # Otherwise, running JS may overwrite our change to project_default_branch
+      wait_for_requests
+
       select2('fix', from: '#project_default_branch')
       page.within '#default-branch-settings' do