Incorporate js fix from https://tracker.zkoss.org/browse/ZK-4204
We can probably remove this js patch when we have upgraded to zk9.
Login as Garden World admin/user
Open an editable sales order
Do one of the following - Press Reload Button or Close the Browser Tab or Close the Browser
Login again and notice the slow down
When running from Eclipse, to verify it is working as expected, you can add a temporary println message at WTableDirEditorEditorCombobox's onPageDetached method. It is working as expected if you see the added println message when you perform one of the action at #4