> Ah, but they are not equivalent because AC::Base#subclasses includes
> names of non-reachable class objects, whereas Class#subclasses filters
> them out.

This difference is probably just to enable reset_subclasses to work
around the ruby memory-leak discussed at length on:

http://rails.lighthouseapp.com/projects/8994/tickets/1339-arbase-should-not-be-nuking-its-children-just-because-it-lost-interest

There's no reason that the AR version can't be called something else
and move subclasses to be the same everywhere.

-- 
Cheers

Koz
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