This is the thread's initial revision.
"Error parsing XML: (error msg) Abandon changes?"
According to the documentation, the user gets the buttons "OK" and "Cancel" to choose from. This is unclear and incorrect, as choosing "OK" would actually cancel the changes, and choosing "Cancel" would keep the changes and return the user to the editor to fix it manually (which is the opposite of cancelling).
At minimum, the buttons presented should be "Yes" and "No". Much better still would be "Abandon" and "Keep".