Version#reify return new object instance with dup: true options

[mourad-ifeelgoods]

If we want to compare two arbitrary versions, we can use version#reify to retrieve the model from the version, and then creating a diff between the models (with activerecord-diff for example)

widget = Widget.find(1)
reified_widget1 = widget.versions[0].reify
reified_widget2 = widget.versions[3].reify
changes = reified_widget1.diff(reified_widget2)

This strategy fail because reify will not create a new instance. reified_widget1 and reified_widget2 are the same object. for this purpose it is possible to call reify with :dup true to return a new instance

[batter]

This looks good, the only thing I question is whether it makes sense to do this all the time? I guess not because it's probably a bit more expensive to do this, huh?