silverstripe/silverstripe-cms — pull request #916 by febsn (2013-12-26 10:43:34+00:00)
Title: auto-updating URLSegment field now language-independent (#915)

My suggestion: Add a custom css class ('new') to the FormError message issued when creating a new page, then look for this class when title is changed.
Pros: language-independent, framework untouched, little code.
Cons: Does still auto-update the URL after a new page is saved/published but not reloaded.