Add comments to clarify the return value in `WebRequestResources`.

framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo/Abp/AspNetCore/Mvc/UI/Resources/WebRequestResources.cs

@@ -30,6 +30,8 @@ public class WebRequestResources : IWebRequestResources, IScopedDependency
         }
 
         Resources.Add(path, resources);
+
+        // Create a new list as return value to avoid any changes to the list will affect the value in Resources dictionary.
         return resources.ToList();
     }
 }