Joe Groff 4adb86d37d change-tracking-tuple class. subclasses will have a "changed?" slot that gets set to true when any slot is modified		2009-07-31 21:48:17 -05:00
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change-tracking	change-tracking-tuple class. subclasses will have a "changed?" slot that gets set to true when any slot is modified	2009-07-31 21:48:17 -05:00