Causes "Select list" to be a single dropdown even when cardinality > 1

This is true whether "Select List" or "Select List (Cardinality)" is chosen for the widget.

Possibly relevant— i am on Drupal 11. (Courtesy of 📌 Automated Drupal 11 compatibility fixes for field_config_cardinality Active )

This simple logic change fixes my problem.

In field_config_cardinality_field_widget_complete_form_alter the // Implementation for multi select type. had $cardinality_config >= 1 as the check to setting $elements['#multiple'] = FALSE; and my merge request here changes that to check that the cardinality equals one, which seems to make sense.

My only problem with this fix is that i cannot believe no one reported the problem for seven years, so i feel like i must be missing something?