DataMapper ORM v1.8.0

[eluser]WanWizard[/eluser]
Ah, yes. When you clone an object, you're only cloning that object.

Variables or object properties that contain other objects, are actually aliases of pointers to the same object. When you clone the object, the aliases are cloned as well, but will still point to the same object instance. Which means that $donor->donation will point to the same object as $donor_c->donation.