new_contents: """A growing set of tests designed to ensure isort doesn't have regressions in new versions"""
  import isort
  
  
  def test_isort_duplicating_comments_issue_1264():
      """Ensure isort doesn't duplicate comments when force_sort_within_sections is set to `True`
      as was the case in issue #1264: https://github.com/timothycrosley/isort/issues/1264
      """
      assert isort.code("""
  from homeassistant.util.logging import catch_log_exception
  
  # Loading the config flow file will register...
  from . import config_flow
  """, force_sort_within_sections=True).count("# Loading the config flow file will register...") == 1
  
subject: Add regression test for issue #1264 demonstrating failure