Fix re-publish of already published descendants in Umbraco

UmbracoHooks.cs

public class UmbracoHooks : IApplicationEventHandler
{
  private static readonly List<int> PublishFixes = new List<int>();
  
  public void OnApplicationStarted(UmbracoApplicationBase umbracoApplication, ApplicationContext applicationContext)
  {
    ContentService.Publishing += (sender, args) =>
    {
        foreach (var contentItem in args.PublishedEntities)
        {
            if (contentItem.HasPublishedVersion()) return;
    
            lock (PublishFixes)
            {
                if (!PublishFixes.Contains(contentItem.Id))
                {
                    PublishFixes.Add(contentItem.Id);
                }
            }
        }
    };
    
    ContentService.Published += (sender, args) =>
    {
        foreach (var contentItem in args.PublishedEntities)
        {
            lock (PublishFixes)
            {
                if (!PublishFixes.Contains(contentItem.Id)) return;
    
                library.RefreshContent();
                PublishFixes.Remove(contentItem.Id);
            }
        }
    };
  }
}