Feature request

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I am wondering if there is a proper way to do the following:

 - Given a reference to a cdbi derived object, I would like it to "refresh" its data from the database. 

In the past, I have been doing this like so:
	- By manually deleting hash keys corresponding to table columns. This always seemed like a bad way, since I am kinda getting into the guts/privates of the object.
	- Another way is to simply retrieve a fresh object by the same primary keys as the one in hand. This no longer works with the advent of the LiveObjects uniquing/caching mechanism, since I will just get the same ref everytime I retrieve, off of the LiveObjects.

Question : Is there a prefered method for refreshing/invalidating an object's data?

Suggestion: It would be really nice to have a method, say "refresh" which would refetch the data from DB.


Max