`_changed` left as `False` when leaf is set to it's default value

[dbarrosop]

Hello,
apparently, if you set an attribute to it's default, _changed is left unmodified. What's the rationale behind that behavior? Is there any way to know the user set the value in that case? It would be interesting to have get(filter=True)(or some other argument) return any value the user might have tried to set even if it was the default value.

Thanks
David

[dbarrosop]

Wrong place...