Folder still present after deleting it in non-native file dialog on Windows

You need a network directory. Just create a shared drive between a Linux and Windows computer (I'm doing it with a Windows VM).
Then open the standarddialog demo, navigate to the network drive and try to delete a folder:

• native dialog: everything is working,
• non-native dialog: the folder is still here, you need to change the directory and go back for the folder to disappear.

Also, it doesn't update when a folder is created or deleted outside the dialog.