DialogService incorrect behavior

[atladas]

If we have ValidationErrors, after commit DialogService return the previous error at first time.
Example:
If we clear summary field and try to move home then canDeactivate fire and DialogService inforn us that have changes,
if we choice cancel and this time try to save DialogService display the same error as before,
if we press ok and try to save again DialogService display the right message.
Thanks

ps:DialogService work fine , this behavior comes from Angular ErrorHandler